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is given in the table...

The hourly wage for a group of employees (in U.S. dollars) is given in the table below:

$5.50$6.40$6.20$8.00$5.50

Find the median

$

Find the sample mean.

$

Find the sample standard deviation. Round to the nearest hundreth, if applicable.

$preview answersProblem 2.

(5 points)An animal shelter has a 65% adoption rate for puppies. Of all puppies in the shelter, 72% live to be 7 years or older. Of the puppies who are adopted, 80% live to be 7 years or older. What is the probability that a randomly selected puppy in the shelter will get adopted and live 7 or more years?

The probability is:

enter your answer as a percent (5%) or as a real-value (0.05)

if you enter your answer as a percent, you must use a %-sign in your answer

your answer must be accurate to the nearest tenth of a percent.preview answersProblem 3.

(5 points)The probability of rain on any day in the month of April is 24%. The probability that it will be windy on any day in the month of April is 38%, and the probability of both is 10%. What is the probability that a randomly selected day in April will be rainy or windy?

The probability is:

enter your answer as a percent (5%) or as a real-value (0.05)

if you enter your answer as a percent, you must use a %-sign in your answer

your answer must be accurate to the nearest tenth of a percent.preview answersProblem 4.

(12 points)A hair salon completed a survey of 352 customers about satisfaction with service: Dissatisfied, Neutral, Satisfied, or Very Satisfied and type of customer: Walk-in, saw a TV ad, or Referred.

The results follow.

DissatisfiedNeutralSatisfiedVery SatisfiedTotalWalk-In2320331894TV Ad8244428*****************2154Total357914098352

Assume the table represents the entire population of customers. Find the probability that a customer is

Dissatisfied

Dissatisfied and a walk-in

Referred

Very satisfied, given referred

Very satisfied or saw a TV adpreview answersProblem 5.

(9 points)A basketball player makes 70% of the free throws he shoots. Suppose that he tries 15 free throws.

What is the probability that he will make more than 7 throws?

enter your answer as a percent (5%) or as a real-value (0.05)

if you enter your answer as a percent, you must use a %-sign in your answer

your answer must be accurate to the nearest whole percent.

How many baskets can the player expect to make if he takes 15 shots?

Your answers must be accurate to the nearest hundreth.

What is the standard deviation of the number of successful free throws out of 15 total?

Your answers must be accurate to the nearest hundreth.preview answersProblem 6.

(19 points)The manufacturer of a new compact car claims the miles per gallon (mpg) measurement for the fuel economy is normally distributed with mean μ=25.9 mpg and standard deviation σ=9.5 mpg.

You may enter your answers as percents (5%) or as real-values (0.05).

If you enter your answer as a percent, you must include a %-sign.

Round your answers to the nearest tenth of a percent.

What is the probability that one new compact car selected at random has a fuel economy of at least 23 mpg?

If 30 such cars are selected at random and tested, what is the probability their average mpg x¯ is no more than 28 mpg?

$5.50$6.40$6.20$8.00$5.50

Find the median

$

Find the sample mean.

$

Find the sample standard deviation. Round to the nearest hundreth, if applicable.

$preview answersProblem 2.

(5 points)An animal shelter has a 65% adoption rate for puppies. Of all puppies in the shelter, 72% live to be 7 years or older. Of the puppies who are adopted, 80% live to be 7 years or older. What is the probability that a randomly selected puppy in the shelter will get adopted and live 7 or more years?

The probability is:

enter your answer as a percent (5%) or as a real-value (0.05)

if you enter your answer as a percent, you must use a %-sign in your answer

your answer must be accurate to the nearest tenth of a percent.preview answersProblem 3.

(5 points)The probability of rain on any day in the month of April is 24%. The probability that it will be windy on any day in the month of April is 38%, and the probability of both is 10%. What is the probability that a randomly selected day in April will be rainy or windy?

The probability is:

enter your answer as a percent (5%) or as a real-value (0.05)

if you enter your answer as a percent, you must use a %-sign in your answer

your answer must be accurate to the nearest tenth of a percent.preview answersProblem 4.

(12 points)A hair salon completed a survey of 352 customers about satisfaction with service: Dissatisfied, Neutral, Satisfied, or Very Satisfied and type of customer: Walk-in, saw a TV ad, or Referred.

The results follow.

DissatisfiedNeutralSatisfiedVery SatisfiedTotalWalk-In2320331894TV Ad8244428*****************2154Total357914098352

Assume the table represents the entire population of customers. Find the probability that a customer is

Dissatisfied

Dissatisfied and a walk-in

Referred

Very satisfied, given referred

Very satisfied or saw a TV adpreview answersProblem 5.

(9 points)A basketball player makes 70% of the free throws he shoots. Suppose that he tries 15 free throws.

What is the probability that he will make more than 7 throws?

enter your answer as a percent (5%) or as a real-value (0.05)

if you enter your answer as a percent, you must use a %-sign in your answer

your answer must be accurate to the nearest whole percent.

How many baskets can the player expect to make if he takes 15 shots?

Your answers must be accurate to the nearest hundreth.

What is the standard deviation of the number of successful free throws out of 15 total?

Your answers must be accurate to the nearest hundreth.preview answersProblem 6.

(19 points)The manufacturer of a new compact car claims the miles per gallon (mpg) measurement for the fuel economy is normally distributed with mean μ=25.9 mpg and standard deviation σ=9.5 mpg.

You may enter your answers as percents (5%) or as real-values (0.05).

If you enter your answer as a percent, you must include a %-sign.

Round your answers to the nearest tenth of a percent.

What is the probability that one new compact car selected at random has a fuel economy of at least 23 mpg?

If 30 such cars are selected at random and tested, what is the probability their average mpg x¯ is no more than 28 mpg?

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