Heights of females in the United States are approximately normally distributed with a mean of 63.8 inches

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Heights of females in the United States are approximately normally distributed with a mean of 63.8 inches and a standard deviation of 2.8 inches. 

a. What is the probability that a randomly chosen female in the United States has a height equal to 67 inches? 

b. What is the probability that a randomly chosen female in the United States has a height greater than 67 inches? 

c. If five females are randomly chosen, what is the probability that exactly three of them will have heights greater than 67 inches?

d. If five females are randomly chosen, what is the probability that at least three of them will have heights greater than 67 inches?

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Introduction To Statistical Investigations

ISBN: 9781119683452

2nd Edition

Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy

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