(a) Explanation Formula used: The probability of obtaining exactly x successes, P ( x ) in n independent trials is given by the binomial probability formula P ( x ) = ( n C x ) p x q n − x , where p is the probability of success on a single trial and q is the probability of failure on a single trial. Calculation: Given that the probability that a person visiting office more than 60 years old is 0.7. Consider exactly 3 of 5 people. So, x = 3 and n = 5 . Obtain the value of q if p = 0.7 . q = 1 − p = 1 − 0.7 = 0 (b) To determine The probability that at least three of the next five people visiting the office are more than 60 years old.

10th Edition

ISBN: 9780134112183

Author: RUNDE

Publisher: YUZU

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Chapter 11.10, Problem 24E

(a)

To determine

The probability that exactly three of the next five people visiting the office are more than 60 years old.

(b)

To determine

The probability that at least three of the next five people visiting the office are more than 60 years old.

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Chapter 11.10, Problem 23E

Chapter 11.10, Problem 25E

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The probability that exactly three of the next five people visiting the office are more than 60 years old.

Solution Summary: The author calculates the probability that three of the next five people visiting the office are more than 60 years old.

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The probability that exactly three of the next five people visiting the office are more than 60 years old.

The probability that at least three of the next five people visiting the office are more than 60 years old.

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Chapter 11 Solutions