SAT College

If f(x) and it’s inverse function,f-1(x), are both potted on the same coordinate plane, where point of intersection?

Answers

Answer 1
You will make only replacement f (-1)

Related Questions

Define award package. What does it include?

Answers

Answer:

Your award letter will list the types and amounts of aid being offered. Aid may be a grant, a scholarship, a loan, work-study—or a combination of these aid types. The award letter should also include: A breakdown of the college's cost of attendance (COA)

Answer:

Your award letter will list the types and amounts of aid being offered. Aid may be a grant, a scholarship, a loan, work-study—or a combination of these aid types. The award letter should also include: A breakdown of the college's cost of attendance (COA)

Explanation:

THIS ANSWER IS CORRECT

BRAIN LESS ANSWER

In a recent year, about 22% of Americans 18 years and older are single. What is the probability that in a random sample of 200 Americans 18 or older more than 30 are single? (Hint: use binomial to normal approximation techniques) Round your z-score to 2 decimal places before referencing table E. Then provide answer out to 4 decimal places.

Answers

Using the normal approximation to the binomial, it is found that there is a 0.0107 = 1.07% probability that more than 30 are single.

Normal Probability Distribution

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.The binomial distribution is the probability of x successes on n trials, with p probability of a success on each trial. It can be approximated to the normal distribution with [tex]\mu = np, \sigma = \sqrt{np(1-p)}[/tex].

In this problem, the proportion and the sample size are, respectively, p = 0.22 and n = 200, hence:

[tex]\mu = np = 200(0.22) = 44[/tex]

[tex]\sigma = \sqrt{np(1 - p)} = \sqrt{200(0.22)(0.78)} = 5.8583[/tex]

The probability that more than 30 are single, using continuity correction, is P(X > 30.5), which is 1 subtracted by the p-value of Z when X = 30.5, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{30.5 - 44}{5.8583}[/tex]

Z = -2.3

Z = -2.3 has a p-value of 0.0107.

0.0107 = 1.07% probability that more than 30 are single.

More can be learned about the normal distribution at https://brainly.com/question/24663213

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