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Fundamentals of Statistics | 4th Edition | ISBN: 9780321838704 | Authors: Michael Sullivan,III
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Chapter 10, Problem 26AYU

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QUESTION:

Problem 26AYU

NASCAR Fans Among Americans who consider themselves auto racing fans, 59% identify NASCAR stock cars as their favorite type of racing. Suppose that four auto racing fans are randomly selected.

(a) What is the probability that all four will identify NASCAR stock cars as their favorite type of racing?

(b) What is the probability that at least one will not identify NASCAR stock cars as his or her favorite type of racing?

(c) What is the probability that none will identify NASCAR stock cars as his or her favorite type of racing?

(d) What is the probability that at least one will identify NASCAR stock cars as his or her favorite type of racing?

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QUESTION:

Problem 26AYU

NASCAR Fans Among Americans who consider themselves auto racing fans, 59% identify NASCAR stock cars as their favorite type of racing. Suppose that four auto racing fans are randomly selected.

(a) What is the probability that all four will identify NASCAR stock cars as their favorite type of racing?

(b) What is the probability that at least one will not identify NASCAR stock cars as his or her favorite type of racing?

(c) What is the probability that none will identify NASCAR stock cars as his or her favorite type of racing?

(d) What is the probability that at least one will identify NASCAR stock cars as his or her favorite type of racing?

ANSWER:

Answer :

Step 1

Given NASCAR Fans Among Americans who consider themselves auto racing fans, 59% identify NASCAR stock cars as their favorite type of racing. Suppose that four auto racing fans are randomly selected.

So,59% = 59/100 = 0.59

a)

The probability that all four will identify NASCAR stock cars as their favorite type of racing.

So,59% = 59/100 = 0.59

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