Flip a coin three times. You will win $2 for each heads. What is the expected winning (expectation of your winning)

Answers

Answer 1

The three coins could land any these 8 ways:

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

P(3 heads) = 1 way out of 8  or 1/8

P(2 heads) = 3 ways out of 8 or 3/8

P(1 head) = 3 ways out of 8 or 3/8

P(0 heads) = 1 way out of 8 or 1/8

x=Winnings  P(x)  E(x)=x�P(x)

    $3      1/8      $.375

    $2      3/8      $.75

    $1      3/8      $.375

  -$10      1/8     -$1.25

---------------------------

Total expectation =   $ .25


Related Questions

if b=p+5 and a=p^2+10p+1 find an expression that equals 2b+3a in standard form

Answers

Answer:

3p² + 32p + 13

Step-by-step explanation:

Okay, so lets first solve for 2b. 2b = 2(p + 5), which is equal to 2p + 10. Now, let's solve for 3a. 3a = 3(p² + 10p +1), simplifying to 3p² + 30p +3. After adding 2b and 3a, we are able to get 2p + 10 + 3p² + 30p + 3 = 3p² + 32p + 13

Answer:

3p² + 32p + 13

Step-by-step explanation:

3p² + 32p + 13

For which function is the ordered pair (2, 12) not a solution?
A) y= 6 x
B) y= x - 10
C) y= 14 - x
D)y= x + 10​

Answers

Answer:

option b

Step-by-step explanation:

y=12 x=2

12 is not equal to 2-10.

lemme know if you didn't understand

The speed of an object is the ratio of its distance traveled to time. If the speed of a bicycle is 4.5 meters per second, what is the distance traveled in 9 seconds?

Answers

Answer:

Step-by-step explanation:

9(4.5) = 40.5 m

I need help... pls. ​

Answers

Answer:

Administer 14 ml, 350mg/125mg=2.8×5ml=14ml

Let 2m - 1 be a prime number. Prove that m is also a prime number

Answers

Answer:

False.

Step-by-step explanation:

This is false.

A Counterexample:

7 is prime.

2(4)-1 is 7.

4 is not prime.

Another Counterexample:

11 is prime.

2(6)-1 is 11.

6 is not prime.

Answer:

If m=2 (which is a prime number), then 4-1=3, 3 is a prime number.

Step-by-step explanation:


For each of the 4 walls of the house, John will need 9 large
planks of wood. If each plank of wood needs 8 pieces of nails
to be secured, how many nails does John need for each wall
of the house?

Answers

The answer is 72 because if each plank needs 8 nails and each wall have 9 planks you multiply 9 by 8 which is 72

A large box contains 12 medium boxes and 18 small boxes. Each small box contains 25 chocolate bars while there are 20 vanilla bars in each medium box. How many chocolate bars are in a large box?

Answers

Answer:

Step-by-step explanation:

The answer is there are 450 chocolate bars in the large box because the small box has 25 chocolate bars and it is 18 small boxes in a large box so you will have the problem of 18 x 25= 450

Surface integrals of vector fields Find the flux of the following vector fields across the given surface with the specified orientation . You may use either an explicit or parametric description of the surface across the slanted face of the tetrahedron x in the first octant ; normal vectors point upward . F= langle0,0,-1 rangle; z = 4-x - y

Answers

Step-by-step explanation:

Surface integrals of vector fields Find the flux of the following vector fields across the given surface with the specified orientation. You may use either an explicit or a parametric description of the surface. F =( 0,0,-1) across the slanted face of the tetrahedron Z=4-x-y in the first octant; normal vectors point upward

Fast indeed help on this !! ( ty )

Answers

Answer:

32

Step-by-step explanation:

First, draw some line for about 4 lines in the double number line.

Now in the bottom, it counts by 15 according to the word problem.

And in the top, count by 8.

Now finally, if you reach 60, write your final number. 32.

woohoo you did it lol

What is 15.56 rounded to the nearest tenth?​

Answers

The answer is 15.6 cuz your round 0.56

Answer: 15.6

Step-by-step explanation:

In 15.56, the digit in the tenths place is the second 5. 15.56. So look at the hundredths place (6). If the digit in the hundredths place is smaller than 5, round down. If it's 5 or more, round up. 6 > 5, so we round the tenths place up by one number to get 15.6.

Chris rented a truck for one day. There was a base fee of $14.99, and there was an additional charge of 75 cents for each mile driven. Chris had to pay
$167.24 when he returned the truck. For how many miles did he drive the truck?
M miles

Answers

Answer:

Chris drove the truck 203 miles.

Step-by-step explanation

So, first I subtracted the base free cost of the amount he paid and got $152.25. Then, I divided $152.25/0.75 and got 203. S0, that's how I got the answer. I subtracted the base free because we know he had to pay that initially and then I just divided the rest of the money he had to pay by 0.75 because he was charge 0.75 per mile driven.

you will receive cookie and 100 points if you help me

Answers

Answer:

-8.45

Step-by-step explanation:

Look at -10 and 0 on the number line. I used a ruler to help me, and found that A and B were about 1 - 1.3 cm apart. I looked at the options and found that -8.45 was the closest.

However, another way you could of worked this out would be to look at your options and eliminate the ones you know don’t work. Then look at your options available and work it out from there.

About how tall would you expect one of these trees to be after 22 years? 22.31ft. 35.2ft. 44.25ft. 46.2ft.

Answers

Answer:

The correct answer is C, 44.25. I just took the test....

Step-by-step explanation:

Please help! I'm confused​

Answers

The solution to the equation f(x) = g(x) is any x-value that makes the equation true.  In terms of using graphs, the solutions are the x-coordinates of any point of intersection.  

So if the graphs intersect at (1,5), then the solution is x=1.

This checks, because f(1) = 5 and g(1) = 5, so f(1) = g(1).

A rectangle has length 72 cm and width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm. What is the length of the second rectangle?

Answers

As given, the other rectangle has the same area as this one, but its width is 21 cm. Hence, length is 192 cm.

Answer:

Step-by-step explanation:

As given, the other rectangle has the same area as this one, but its width is 21 cm. Hence, length is 192 cm.

Write 12 as a product of primes. Use index notation when giving your answer

Answers

[tex]12 = 2 \times 2 \times 3[/tex]

or

[tex]12 = {2}^{2} \times 3[/tex]

- BRAINLIEST answerer

Is it possible for a fifth degree polynomial function with
integer coefficients to have no real zeroes?

Answers

if a polynomial function is given with degree and and and is even then it is possible toe have all complex zeros as complex zeros come in pairs in conjugated pairs, so we would always have two times the number of pairs given us and even degree.

What would you do if you found out that you wrote a cheque of $78 but it was recorded as $98 in check register?

Answers

Step-by-step explanation:

I'll go to the cashier and says it's wrong cheque

is a function f(x)= 1/x odd or even?

Answers

Answer:

the function is odd.

Step-by-step explanation:

f(x) is even if f(−x)=f(x) . f(x) is odd if f(−x)=−f(x) . Since −1x=−f(x).

Answer:

Odd

Step-by-step explanation:

There are two ways a function can be determined even or odd.

1. Graph

If the line of symmetry is the y=axis, the function is even.

If it can be rotated 180˚ about the origin and lines up with the original equation, it is odd.

If none of the cases above are satisfied, the function is neither.

2. f(-x)

If you substitute -x for x and you get the equation to be the same as before, the function is even.

If you substitute -x for x and you get the previous equation * -1, the function is odd.

If none of the cases above are satisfied, the function is neither.

[tex]\lim_{n \to \infty} (xe^{x} )/x+e^{x}[/tex]

Answers

[tex] \: \: \: \: [/tex]

[tex] lim_{n→ \infty }( \frac{xe ^{x} }{x + ex} ) [/tex]

the limit of a constant is equal to the constant

[tex] \frac{x {e}^{x} }{x + ex} [/tex]

simplify the expression

[tex] = \frac{ {e}^{x} }{1 + e} [/tex]

hope it helps

[tex] \: \: \: [/tex]

Help help me help help

Answers

The co ordinates of M would be (-2,6)

8/27 simplified as an exponent

Answers

Answer:

what is an exponent bro ;-;

2^3
/
3^3
Is this is what you meant

720 is what percent of $800?

Answers

the answer is 90 hope this help.

Help pls ASAP plssss is sims ska and d

Answers

The answer is -1 because the line goes through it

Suppose that the radius of a sphere is divided by 9. What happens with the surface area?

Answers

Answer:

Rad/9

Step-by-step explanation:

A construction company can remove 3/8 tons of dirt from a construction site each hour. How long will it take them to remove 24 tons of dirt from the site

Answers

Answer:

64 hours

Step-by-step explanation:

(3\8) times 64 (hours) equals 24 (tons of dirt)

y = 4x – 1 with inputs x = -3, x = -2, and x = -1

Answers

Part 1. If x = -3 the equation would be. Y = -12-1 which would be Y= -13

Part 2. If x = -2 the equation Y = -8-1 which would be Y = -9

Part 3. If x = -1 the equation would be. Y =-4-1 which would be Y = -5

help me with math and ill mark brainliest​

Answers

Answer:

I and II

Step-by-step explanation:

All trapezoids have a midsegment. The base angles of isosceles trapezoids are always congruent. Because the top and bottom side are parallel, the same side interior angles are supplementary not complementary.

Kaylee needed to fold 586 paper notices for a fundraiser. The notices would be mailed in 22 days. Which expression gives the best estimate of the number of notices she must fold each day to meet her goal?

A.
500
÷
20
B.
500
÷
30
C.
600
÷
20
D.
600
÷
30

Answers

Answer: C

Step-by-step explanation: Round to the nearest 100

Find the value of x in each case.​

Answers

Answer:

Step-by-step explanation:

To find x

Â= 180⁰-8x (angle on a straight line)

B= 180- 9x (angle on a straight line)

:. G + Â + B = 180⁰ ( sum of angles in a triangle)

5x + 180⁰ - 8x + 180⁰ - 9x = 180⁰

5x -8x - 9x + 180⁰ +180⁰ = 180⁰

-12x + 360⁰ = 180⁰

360⁰ - 180⁰ = 12x

180⁰ = 12x ( divide both sides by 12)

x = 15⁰

Other Questions
Eric is a Missouri resident and a sentenced offender. He was sentenced to three years of probation with the following conditions:1. He must not violate any law of any state or any local ordinance.2. He must report to Probation Officer Greg James monthly at a predetermined time.3. He must not use any illegal substance or alcohol and must also submit to random testing.4. He must obtain permission from Probation Officer James before traveling out of Missouri.In his second year of probation, Eric was captured by store detectives stealing a satellite radio system from an electronics store in Orlando, Florida. The Orlando Police Department responded to the scene and investigated. After interviewing the store detectives, they issued Eric a misdemeanor appearance citation for shoplifting. The appearance citation contained a mandatory court date for the following month.Approximately three months later, Probation Officer James received a letter from the local district court in Orlando, Florida. The letter informed James that probationer Eric was in Orlando in January, received a misdemeanor violation for shoplifting, and has since failed to report for the scheduled court date; a warrant has now been issued by the Orlando District Court. James reviewed probationer Erics file and found no record of any request to leave the state for any type of travel. Erics home address is listed as Springfield, Missouri.Probation Officer James prepared all of the paperwork required to initiate probation revocation proceedings against Eric. James also sent Eric written notice that the terms of his probation had been breached and that his probation had been placed in jeopardy. The notice informed Eric that a hearing had been set for the probation revocation. During the hearing, Eric will have an opportunity to present evidence on his own behalf.On the date of the hearing, Eric and James arrived at the courthouse to present their arguments before the presiding judge. During the hearing, Probation Officer James presented evidence supporting the alleged breach of the conditions of probation. He presented sworn statements from Orlando store detectives regarding the shoplifting incident and sworn statements from the Orlando police officer who issued Eric the misdemeanor appearance citation. Eric responded to the allegations by testifying that the Orlando misdemeanor case was a case of mistaken identity and that he was at home in Missouri during that time. James rebutted Erics testimony by restating that his witnesses (through their sworn statements) could attest to the fact that Eric was in fact arrested in Orlando for shoplifting the satellite radio system on the date in question. 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