Based on both the mean and median values, we can conclude that Wide Awake typically sells more coffee per hour than Coffee Ground.
What are the mean and median?
The mean and median are two measures of central tendency that can be used to describe a set of data. The median is the middle value in the data set when the values are arranged in order from lowest to highest. If there are an even number of values, the median is the average of the two middle values.
To determine which coffee shop typically sells the most amount of coffee per hour, we need to compare the measures of center (mean and median) of the data for each shop.
Calculating the mean of each dataset, we get:
Mean of Coffee Ground = (1.5+20+3.5+12+2+5+11+7+2.5+9.5+3+5) / 12 = 6.5/2 = 5.42 gallons
Mean of Wide Awake = (2.5+10+4+18+4+3+6+5+2.5) / 9 = 56 / 9 = 6.22 gallons
Calculating the median of each dataset, we get:
Median of Coffee Ground = 4.25 gallons
Median of Wide Awake = 4.5 gallons
Comparing the measures of the center, we see that the mean value of coffee sold per hour at Coffee Ground is approximately 5.42 gallons, while the mean value of coffee sold per hour at Wide Awake is approximately 6.22 gallons.
Therefore, on average, Wide Awake sells more coffee per hour than Coffee Ground.
However, we also see that the median value of coffee sold per hour at Wide Awake is 4.5 gallons, while the median value of coffee sold per hour at Coffee Ground is 4.25 gallons.
This suggests that the middle value of coffee sold per hour is higher for Wide Awake than for Coffee Ground.
Therefore, based on both the mean and median values, we can conclude that Wide Awake typically sells more coffee per hour than Coffee Ground.
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what is the precent of change from 22 to 26
Answer: 15.4% (rounded to the nearest tenth)
Step-by-step explanation:
Find the distance between the points and given below.
(That is, find the length of the segment connecting and .)
Round your answer to the nearest hundredth.
Answer:
AB = 6.71 to nearest hundredth.
Step-by-step explanation:
To get from A to B we move 3 units to the right then 6 units up.
This form a right angled triangle so we use Pythagoras theorem:
AB^2 = 3^2 + 6^2
= 9 + 36
= 45
So AB = √45
= 3√5 = 6.7082
A boat is heading towards a lighthouse, where
Jeriel is watching from a vertical distance of 113
feet above the water. Jeriel measures an angle of
depression to the boat at point A to be 8°. At
some later time, Jeriel takes another
measurement and finds the angle of depression
to the boat (now at point B) to be 52°. Find the
distance from point A to point B. Round your
answer to the nearest tenth of a foot if necessary.
The letters a and b represent nonzero constants. Solve ax+b=53 for x.
The solution to x=
Please hurry
Answer:
the solution for x is (53 - b)/a.
Can someone please HELP ME with this problem!!!!! I need HELP ASAP!!! RIGHT NOW!!!
The population of bacteria after I days is P(I) = 3700 * e^(0.11 * I) and percentage rate of change per hour is 0.4285%
What is exponential growth?
Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function.
Equation:The population of bacteria in the petri dish is growing exponentially at a rate of 11% per day. This means that the daily growth rate r is 0.11, or 11/100.
The formula for exponential growth is:
P(t) = P0 * e^(rt)
Where:
P(t) is the population after t days
P0 is the initial population
r is the growth rate per day
e is the mathematical constant approximately equal to 2.71828
Using the given information, we have:
P0 = 3700
r = 0.11
So, the formula for the population of bacteria after I days is:
P(I) = 3700 * e^(0.11 * I)
To find the percentage rate of change per hour, we need to convert the daily growth rate to an hourly growth rate. There are 24 hours in a day, so the hourly growth rate h is:
h = (1 + r)^(1/24) - 1
Substituting the value of r, we get:
h = (1 + 0.11)^(1/24) - 1
Simplifying this expression, we get:
h = 0.004285
So, the hourly growth rate is 0.4285%, or 0.004285 expressed as a decimal.
Therefore, the population of bacteria after I days is:
P(I) = 3700 * e^(0.11 * I)
And the percentage rate of change per hour is:
0.4285% (rounded to the nearest hundredth of a percent)
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The percentage rate of change per hour is approximately 0.46%.
How to calculate percentage?
The formula for exponential growth is:
N(t) = N0 * e raise to the power (r*t)
where:
N(t) is the population at time t
N0 is the initial population
r is the growth rate
e is the mathematical constant approximately equal to 2.71828
t is the time elapsed
In this case, we have:
N0 = 3700
r = 11% per day, or 0.11/24 = 0.0045833 per hour (since there are 24 hours in a day)
t is the time elapsed in days
To convert the time elapsed in days to hours, we can multiply t by 24. Therefore, the function for the population of bacteria after t days is:
f(t) = 3700 * e raise to the power (0.004583324t)
To round the coefficients in the function to four decimal places, we can use the round() function in Python:
f(t) = round(3700 * e**(0.004583324t), 4)
To determine the percentage rate of change per hour, we can calculate the percentage increase in the population per hour using the formula:
Percentage increase = (e raise to the power (r*h) - 1) * 100
where:
r is the growth rate per day
h is the time elapsed in hours
In this case, we have:
r = 11% per day, or 0.11/24 = 0.0045833 per hour
h = 1 hour
Plugging these values into the formula, we get:
Percentage increase = (e raise to the power (0.0045833*1) - 1) * 100 = 0.4646%
Therefore, the percentage rate of change per hour is approximately 0.46%.
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solve this problem pleasee
The measure of following values for the given circle is:
Sector AE = (2/3)π square units
Sector AB = (10/9)π square units
Sector ECB = (1/3)π square units
Angle BOC = 160 degrees
What is circle?In geometry, a circle is a two-dimensional shape that is defined as the set of all points in a plane that are equidistant from a given point called the center. The distance from the center to any point on the circle is called the radius of the circle.
Here,
Sector AE:
The central angle of 60 degrees represents one-sixth (60/360) of the circle, so the sector AE has an area of one-sixth of the total area of the circle. The area of the circle is πr² = 4π square units, so the area of sector AE is:
(1/6) x 4π = (2/3)π square units
Sector AB:
The central angle of 50 degrees represents 5/18 (50/360) of the circle, so the sector AB has an area of 5/18 of the total area of the circle. The area of the circle is πr² = 4π square units, so the area of sector AB is:
(5/18) x 4π = (10/9)π square units
Sector ECB:
Since angles EOC and BOC are complementary (they add up to 90 degrees), the central angles they subtend are also complementary. Therefore, the central angle of sector ECB is 90 - 60 = 30 degrees. This represents one-twelfth (30/360) of the circle, so the sector ECB has an area of one-twelfth of the total area of the circle. The area of the circle is πr² = 4π square units, so the area of sector ECB is:
(1/12) x 4π = (1/3)π square units
Angle BOC:
Since angles AOB and COE are both right angles (as they subtend diameters of the circle), we know that angle AOC is 90 degrees. Therefore, angle BOC is:
360 - 90 - 60 - 50 = 160 degrees
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URGENT
Find the length of side x in simplest radical form with a rational denominator.
value of side x in the triangle is 6 ( simplest radical form with a rational denominator is 6/1).
Define right triangleA right triangle is a triangle that has one angle measuring 90 degrees, which is also called a right angle. The hypotenuse is the side that faces the right angle, while the legs are the other two sides.
Define trigonomteric functionTrigonometric functions are a set of mathematical functions used to relate the angles and sides of a right triangle. Sine (sin), cosine (cos), tangent (tan), cosecant (csc), secant (sec), and cotangent are the six fundamental trigonometric functions (cot).
In the given right angles triangle
Using trigonomteric function
Tan30°=√12/x
1/√3=√12/x
x=√12×√3
x=√36
x=6
Hence, value of side x in the triangle is 6.
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Mason's mother wants to make 8 curtains that each require 2 1/5 metres of material in a standard width, but she only has 16-metres of material. There are to be no seams in her curtains. She asks Mason to buy more material.
a. How much more material must Mason buy?
B. How much material is left over?
Answer:mason must need 33.6 m of materail to make 8 curtains.
so he need to 17.6m of material
Step-by-step explanation:
The answer of this question bc it showing me the answer is D
Answer:
You're right -- it's B!
Step-by-step explanation:
When raising a power to a power, multiply exponents. The answer would be D if it were 4^6 times 4^3, but it's (4^6)^3, so I'm not sure what is happening to the computer.
Please help me with these two questions this is due today
Can someone help me ASAP it’s due tomorrow. I will give brainliest if it’s all done correctly.
The first, second, and third one.
6 - (5 divided by a)^3 + 8 a=5
Answer:
13
Step-by-step explanation:
Evaluate the expression:
[tex]6-(5 \div a)^3 +8[/tex]
a = 5, plug in the value
[tex]6-(5\div 5)^3 + 8[/tex]
Divide in parentheses
[tex]6-1^3+8[/tex]
1^3 = 1, then subtract 6 and 1
[tex]5+8[/tex]
Add
[tex]13[/tex]
2.quality style manufactures self-assembling furniture. to reduce the cost of returned orders, the manager of its quality control department inspects the final packages each day using randomly selected samples. the defects include wrong parts, missing connection parts, parts with apparent painting problems, and parts with rough surfaces. the average defect rate is four per day. owhich type of control chart should be used? construct a control chart with 3-sigma control limits.
The type of control chart should be used here is equals to C-chart. So, the right answer is option (c). The upper and lower control limits are 10 and 0 respectively.
We have a quality style manufactures self-assembling furniture.
Average Defect rate = 4 per day
Now, here we are checking the number of defective packages per day which is independent day to day and have a mean or average of 4 per day. So, we use here the C- chart one of type of control chart. Also, we have to draw control chart with 3-sigma control limits. Average defect Rate, c' = 4
We determine the control limits,
CL = 3 ( 3-sigma )
The upper control limit , UCL = c' + 3 √c'
= 4 + 3 √4 = 10
The lower limit, LCL= max ( 0, c' - 3 √c')
c' - 3 √c' = 4 - 3√4 = -2, as it is less than zero, So, lower control limit, LCL= 0.00.
The construction of control chart always consists,
First, we have to determine the mean of the observed data.Secondly, we have to determine the variance of the set.Third, calculate the standard deviation, which means the square root of the variance.Fourth, we have to determine the three-sigma, which means three standard deviations above the mean. a central line for the average, an upper line for the upper control limit, and a lower line for the lower control limit.For more information about Control chart , refer :
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Complete question:
quality style manufactures self-assembling furniture. to reduce the cost of returned orders, the manager of its quality control department inspects the final packages each day using randomly selected samples. the defects include wrong parts, missing connection parts, parts with apparent painting problems, and parts with rough surfaces. the average defect rate is four per day. owhich type of control chart should be used?
i) R chart
ii) p chart
iii) c chart
construct a control chart with 3-sigma control limits.
P(-11, -24) Q (21, 40)
Find the slope
Answer:
To find the slope between two points (x1, y1) and (x2, y2), we use the formula:
slope = (y2 - y1) / (x2 - x1)
Using the given points P(-11, -24) and Q(21, 40), we can substitute the values into the formula:
slope = (40 - (-24)) / (21 - (-11))
slope = 64 / 32
slope = 2Therefore, the slope between points P(-11, -24) and Q(21, 40) is 2.
Answer:
2
Step-by-step explanation:
To find the slope, we can use the slope formula
m = ( y2-y1)/(x2-x1)
= ( 40 - -24)/(21 - -11)
= ( 40+24)/(21+11)
= 64/32
= 2
What is and equation of the line that passes through the points ( − 4 , − 6 ) and (8,−6)
Answer: y= -6
Step-by-step explanation: use the slope formula and slope intercept; y=mx+b
for the following situations, would you collect information using a sample or a population? a. to find how many books are published in one week by a famous publishing company. multiple choice 1 sample population b. to test a new drug produced by a biotech company. multiple choice 2 sample population c. to find the number of men and women working in an it company with 600 people. multiple choice 3 population sample d. to estimate the average salary of doctors in california. multiple choice 4 population sample
We have to solve all of the parts of the given problem using our understanding of a sample and a population. It is given below.
A sample is taken when you want to take data from a specific set and then make observations based on that. A population is, on the other hand, the complete set that you want to make your observations from.
In the given problem -
A. To find how many books are published in one week by a famous publishing company - We are going to use a sample because we need to observe under s set category - one week.
B. To test a new drug produced by a biotech company - We are going to use a population because we need to monitor all individuals who take this drug.
C. To find the number of men and women working in an IT company with 600 people - We use a population here because we are going to use the data of all the people in the company.
D. To estimate the average salary of doctors in California - We use a sample here because the set category is California.
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Need help with Algebra I
The area of triangle in given figure is = 60 cm²
What do you mean by Triangle ?A triangle is a three-sided polygon that is formed by connecting three non-collinear points in a plane.The sum of the interior angles of a triangle is always 180 degrees, and the length of each side can be determined by the application of the Pythagorean theorem or other trigonometric functions, depending on the given information. Triangles can also be classified based on the size of their angles and the lengths of their sides, which give rise to various types of triangle such as equilateral, isosceles, scalene, acute, right, and obtuse triangles.
According to quesrtion
Given height = 3cm
Base = 10cm
if the height is quadrupled then height = 4 × 3 = 12cm
Area = 1/2 × base × height
= 1/2 × 70 × 12
to solve this we get
Area = 60cm²
So, the area of this triangle is 60cm²
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suppose George has three pieces of wood to use for a triangular frame for his art piece the pieces of wood have length of 16 inch 14 inch 30-in can George use these pieces of wood to make a triangular frame
The given wood length does not satisfied the property of triangle through which it unable to create a triangle.
What about length of triangle?
The length of a triangle depends on the specific triangle you are referring to and the measurements of its sides. A triangle is a three-sided polygon, and its length is typically measured as the length of its sides.
There are different types of triangles based on their side lengths, such as equilateral triangles with three equal sides, isosceles triangles with two equal sides, and scalene triangles with no equal sides. The length of each side in these triangles can be determined using various methods, such as the Pythagorean theorem, the Law of Cosines, or trigonometric functions.
Define triangle property:
A triangle is a polygon with three sides and three angles. The properties of a triangle include:
Three sides: A triangle has three sides that can have different lengths.Three angles: A triangle has three angles that add up to 180 degrees.Interior angles: The interior angles of a triangle can be acute (less than 90 degrees), right (exactly 90 degrees), or obtuse (greater than 90 degrees).Exterior angles: The exterior angles of a triangle are formed by extending one of the sides of the triangle and measuring the angle between it and the adjacent side. The sum of the measures of the exterior angles of a triangle is always 360 degrees.According to the given information:
As, we know the property of triangle that sum of two side always greater than third side of the triangle. But when add 16 inch and 14 inch we get 30 inch as a result that is same length of the third side.
Hence, it is not greater than third side so, through the given length we can't create a triangle.
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Emily buys a shirt that originally costs $54. The price is marked down by 15% due to a sale, but Emily has a coupon for an additional 10%. How much did Emily pay for the shirt?
Emily has to pay $41.31 for the shirt after adding coupon and discount.
How to find the Cost Price (CP) of any discounted item?
Lets say CP = 54 and the discount is of 15% i.e. marked price
So, Marked Price= 85% of CP = 45.9
Lets apply the additional coupon of 10% on Marked Price.
Therefore, the payment amount = 90% of MP
payment amount = $41.31
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sean makes 225 a week with a standard deviation of 35, evan makes 240 with a standard deviation of 15, what is the probability that's sean will make more than evan on a randomly selected week?
The probability that Sean will make more than Evan on a randomly selected week is approximately 0.3446 or 34.46%.
To calculate the probability that Sean will make more than Evan in a randomly selected week, we need to compare their incomes in terms of standard deviations from the mean.
First, we need to calculate the difference between their means:
Mean difference = Sean's mean income - Evan's mean income = $225 - $240 = -$15
Next, we need to calculate the standard deviation of the difference between their incomes:
Standard deviation of difference = √[(Sean's standard deviation)^2 + (Evan's standard deviation)^2] = √[(35)^2 + (15)^2] = 37.42
Now, we can use a z-score table to find the probability that Sean's income will be higher than Evan's income:
Z-score = (Sean's income - Evan's income - Mean difference) / Standard deviation of difference = (225 - 240 - (-15)) / 37.42 = 0.40
From the z-score table, we find that the probability of a z-score of 0.40 or higher is 0.3446.
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A toy rocket is shot vertically into the air from a launching pad 4feet above the ground with an initial velocity 96of feet per second. The height h, in feet, of the rocket above the ground at t seconds after launch is given by the function h=-16t^2+96+4 . How long will it take the rocket to reach its maximum height? What is the maximum height?
Question content area bottom
Part 1
The rocket will reach its maximum height ? after launch
(Simplify your answer.)
Part 2
The maximum height reached by the object is ?
(Simplify your answer.)
Step-by-step explanation:
Height = - 16 t^2 + 96 t + 4
max will occur at t = - b/2a = - 96/(2*-16) = 3 seconds
The max height at t = 3
Height = -16 (3^2) + 96 (3) + 4 = 148 ft
30 points to whoever solves
Answer: 24,500 ways
Step-by-step explanation:
The number of ways to select 4 appetizers out of 8 is given by the combination C(8,4) = 70. Similarly, the number of ways to select 3 main courses out of 5 is given by C(5,3) = 10, and the number of ways to select 3 desserts out of 7 is given by C(7,3) = 35.
To find the total number of ways to select the full meal consisting of 4 appetizers, 3 main courses, and 3 desserts, we can use the multiplication principle of counting, which states that the total number of ways to perform a sequence of independent tasks is equal to the product of the number of ways to perform each individual task.
Therefore, the total number of ways to select the full meal is given:
70 x 10 x 35 = 24,500
Hence, there are 24,500 ways to select 4 appetizers, 3 main courses, and 3 desserts from the given options.
Answer:
Step-by-step explanation:
The number of ways to select 4 appetizers out of 8 is given by the combination C(8,4) = 70.
Similarly, the number of ways to select 3 main courses out of 5 is given by C(5,3) = 10, and the number of ways to select 3 desserts out of 7 is given by C(7,3) = 35.
To find the total number of ways to select the full meal consisting of 4 appetizers, 3 main courses, and 3 desserts, we can use the multiplication principle of counting, which states that the total number of ways to perform a sequence of independent tasks is equal to the product of the number of ways to perform each individual task.
Therefore, the total number of ways to select the full meal is given:70 x 10 x 35 = 24,500.
Hence, there are 24,500 ways to select 4 appetizers, 3 main courses, and 3 desserts from the given options.
What is the area of a triangle whose sides have length $\sqrt{70},$ $\sqrt{70},$ and $\sqrt{28}$?
The area of a triangle whose sides have lengths √70,√70,√and 28 is 10.45.
What is the area of the triangle?
A triangle is a polygon that has three sides and three vertices. It is one of the basic figures in geometry.
The area of the triangle is defined as the product of half the base and the height of the triangle.
The area of the triangle = (0.5)x b x h
Length of its base = b units
Its height = h units long,
Given;
The sides of the triangle √70,√70,√28
Now,
H²=70-28/4
H²=70-7
H=7.9
[tex]Area= b *\frac{ h}{2}[/tex]
[tex]=\sqrt{28}\frac{7.9}{2}[/tex]
=10.45
Therefore, the area of the triangle will be 10.45.
The complete question is-
What is the area of a triangle whose sides have length √{70},√{70}, and √{28} ?
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$495 is 55% of what number?
Percent Proportion -
Percent Equation -
To find the number that 495 is 55% of, we can use the percent proportion or percent equation.
Using the percent proportion:
Part/Whole = Percent/100
Let x be the whole (or total) number we are looking for. Then:
495/x = 55/100
We can cross-multiply to solve for x:
49500 = 55x
Dividing both sides by 55:
x = 900
Therefore, 495 is 55% of 900.
Using the percent equation:
Percent * Whole = Part
Let x be the whole (or total) number we are looking for. Then:
55% * x = 495
We can divide both sides by 0.55 to solve for x:
x = 495 / 0.55
Simplifying:
x = 900
Therefore, 495 is 55% of 900.
Answer: 55 %
Step-by-step explanation:
To find the number that $495 is 55% of, we can use the following proportion:
part/whole = percent/100
Let x be the number we are trying to find, then we can write:
495/x = 55/100
To solve for x, we can cross-multiply:
55x = 49500
Dividing both sides by 55, we get:
x = 900
Therefore, $495 is 55% of 900.
Pleaseee Help Meeeeeeeeeee
"if You don't Know the Answer DON'T ANSWER THE QUESTION."
(If you Answer the question and You don't Know it, It takes away From someone else being able to Answer it and Give me the Correct Answer.)
PS. IT'S MULTIPLE CHOICE, WHICH MEANS IT'S MORE THAN ONE ANSWER. PLEASE DO NOT RESPOND TO THE QUESTION- IF YOU DON'T HAVE MORE THAN ONE ANSWER.
PLEASE AND THANK YOU,
PLEASE HELP I WILL GIVE BRAINLYIEST
Write a linear polynomial (degree of 1) to represent the length of a rectangle. Write another linear
polynomial (degree of 1) to represent the width of a rectangle.
Part A: What is the expression that represents the area of the rectangle? Show your work. (5 points)
Part B: For your answer for the area of the reaction in Part A, explain its degree and classification and why it
has that degree and classification? (3 points)
Part C: Explain how closure under multiplication applies to your your dimension and area in Part A. (7 points)
Therefore, the expression that represents the area of the rectangle is A(x) = mnx² + (mc + bn)x + bc.
What is polynomial?In mathematics, a polynomial is a mathematical expression consisting of variables (also known as indeterminates) and coefficients, which are combined using only the operations of addition, subtraction, multiplication, and non-negative integer exponents.
Here,
Part A:
Let's assume that the length of the rectangle is represented by the linear polynomial L(x) = mx + b, where m is the slope of the line and b is the y-intercept. Similarly, let's represent the width of the rectangle by the linear polynomial W(x) = nx + c, where n is the slope of the line and c is the y-intercept.
The area of the rectangle is given by multiplying the length and width of the rectangle, so we can express the area A(x) as:
A(x) = L(x) * W(x)
= (mx + b) * (nx + c)
= mnx² + (mc + bn)x + bc
Part B:
The degree of the polynomial A(x) is 2, which makes it a quadratic polynomial. The classification of the polynomial A(x) is that of a concave upward parabola. The degree of the polynomial is 2 because of the presence of the quadratic term mnx² in the expression for the area. The classification of the polynomial as a concave upward parabola is because the coefficient of the x² term is positive (i.e., mn > 0), and this causes the graph of the polynomial to curve upwards.
Part C:
Closure under multiplication means that if we multiply two numbers in a certain set, the result is always within that same set. In the context of the dimensions and area of a rectangle, closure under multiplication applies because if we multiply the length and width (which are both represented by linear polynomials), the resulting area (which is represented by a quadratic polynomial) is still within the same set of polynomial functions. Specifically, multiplying two linear polynomials results in a quadratic polynomial, and since polynomial functions are closed under multiplication, the resulting area polynomial is still a polynomial function. This means that the area of the rectangle can be represented by a single polynomial function, which is useful for various mathematical computations and applications.
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motorola used the normal distribution to determine the probability of defects and the number of defects expected in a production process. assume a production process produces items with a mean weight of 11 ounces. a. the process standard deviation is , and the process control is set at plus or minus standard deviations. units with weights less than or greater than ounces will be classified as defects. what is the probability of a defect (to 4 decimals)? 0.3173 in a production run of parts, how many defects would be found (to the nearest whole number)? 16 b. through process design improvements, the process standard deviation can be reduced to . assume the process control remains the same, with weights less than or greater than ounces being classified as defects. what is the probability of a defect (to 4 decimals)? in a production run of parts, how many defects would be found (to the nearest whole number)? c. what is the advantage of reducing process variation, thereby causing a problem limits to be at a greater number of standard deviations from the mean?
(a) (i) 0.3174 = 31.74% probability of a defect
(ii) The expected number of defects for a 1,000-unit production run is 317.
(b) (i) 0.0026 = 0.26% probability of a defect
(ii) The expected number of defects for a 1,000-unit production run is 3.
(C) Reduces the process standard deviation and causes no change in the number of defects.
When the distribution is normal, we use the z-score formula.
In a set with mean and standard deviation, the score of a measure X is given by:
Z = X-μ /σ
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Question a:
We have that: μ = 10 and σ = 0.12
(i). Calculate the probability of a defect.
Less than 9.88 or greater than 10.12. These probabilities are equal, so we find one and multiply by 2.
Probability of less than 9.88:
This is the p-value of Z when X = 9.88. Thus,
Z = X-μ /σ
⇒ Z = 9.88 - 10/0.12
⇒ Z = -1, has a p-value of 0.1587
⇒ 2× 0.1587 = 0.3174
This means 0.3174 = 31.74% probability of a defect
(ii) Calculate the expected number of defects for a 1,000-unit production run.
The expected number of defects is 31.74% of 1000. So
0.3174*1000 = 317.4
Rounding to the nearest integer
The expected number of defects for a 1,000-unit production run is 317.
Question (b):
The mean remains the same, but the standard deviation is now
(i) Calculate the probability of a defect.
Less than 9.88 or greater than 10.12. These probabilities are equal, so we find one and multiply by 2.
Probability of less than 9.88:
This is the p-value of Z when X = 9.88. Thus,
Z = X-μ /σ
⇒ Z = 9.88 -10/0.04
⇒ Z = -3
⇒ Z = -3, has a p-value of 0.0013
which means 2× 0.0013 = 0.0026
from which 0.0026 = 0.26% probability of a defect
(ii) Calculate the expected number of defects for a 1,000-unit production run. The expected number of defects is 31.74% of 1000. Thus,
⇒ 0.0026*1000 = 2.6
Rounding to the nearest integer
The expected number of defects for a 1,000-unit production run is 3.
(C) The advantage of reducing process variation, thereby causing problem limits to be at a greater number of standard deviations from the mean Reduces the process standard deviation and causes no change in the number of defects.
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Which Number should be added to both sides of this quadratic equation to complete the square?
The number which could be added to both sides of the quadratic equation to complete the square is; -2.25.
What in mathematics is a quadratic equation?
ax² + bx + c = 0 is a quadratic equation, which is a second-order polynomial equation in a single variable. a 0. The fundamental theorem of algebra ensures that it has at least one solution because it is a second-order polynomial problem. Real or complicated solutions are also possible.
The quadratic equations give in the task content is; 1=x²-3x. Hence, to express the equation by completing the square method; we have;
1 - 2.25 = (x -3/2)² - 2.25
Hence, the number which should be added to both sides of the equation is; -2.25.
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(y+4)^2 * (y-4)^2
Pls help, will mark brainliest
(Use factoring)
Answer:
Step-by-step explanation:
Kim receives 4 stickers more than Jim. If Kim receives 20 stickers, What is the ratio of Kim’s stickers to Kim’s stickers? How many stickers must Kim receive if Jim gets 60 stickers?
Kim must receive 75 stickers if Jim gets 60 stickers.
1. Since Kim receives 4 stickers more than Jim, and Kim receives 20 stickers,
we can determine the number of stickers Jim receives:
Jim's stickers = Kim's stickers - 4
Jim's stickers = 20 - 4
Jim's stickers = 16
2. The ratio of Kim's stickers to Jim's stickers is:
Kim's stickers : Jim's stickers
20 : 16
3. To simplify the ratio, divide both numbers by their greatest common divisor (4):
(20/4) : (16/4)
5 : 4
So, the ratio of Kim's stickers to Jim's stickers is 5:4.
4. If Jim receives 60 stickers, we can determine how many stickers Kim must receive using the ratio 5:4:
4 units = 60 stickers (Jim's)
1 unit = 60 stickers / 4
1 unit = 15 stickers
Since Kim has 5 units in the ratio:
Kim's stickers = 5 units * 15 stickers/unit
Kim's stickers = 75 stickers.
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