Explanation Given info: The probability that someone is a universal blood donor is 0.06. The subjects are randomly selected for a National Health and Nutrition examination Survey. Calculation: Define the random variable x as the number of trial. The number of trials is not fixed. So to find the probability of getting first success on x th trial the geometric distribution can be used. The formula for the geometric distribution is, P ( x ) = p ( 1 − p ) x − 1 Where, x is number trials, p is probability of success. Here, the required probability is the probability that the first subject to be universal donor is the fifth person selected. So x = 5 and p = 0

Essentials of Statistics Books a la carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (5th Edition)

5th Edition

ISBN: 9780133892697

Author: Mario F. Triola

Publisher: PEARSON

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Chapter 5.3, Problem 45BB

To determine

The probability that the first subject to be a universal blood donor is the fifth person selected.

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Chapter 5.3, Problem 44BSC

Chapter 5.3, Problem 46BB

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Essentials of Statistics Books a la carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (5th Edition)

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