The weights of adult males are normally distributed with mean of 172 pounds and a standard deviation of 29 pounds. a. What is the probability that a selected adult male will weigh more than 190 pounds? b. What is the probability that 25 randomly selected adult males will have a mean weight of more than 205 pounds?

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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The weights of adult males are normally distributed with mean of 172 pounds
and a standard deviation of 29 pounds.
a. What is the probability that a selected adult male will weigh more than 190
pounds?
b. What is the probability that 25 randomly selected adult males will have a
mean weight of more than 205 pounds?
Transcribed Image Text:The weights of adult males are normally distributed with mean of 172 pounds and a standard deviation of 29 pounds. a. What is the probability that a selected adult male will weigh more than 190 pounds? b. What is the probability that 25 randomly selected adult males will have a mean weight of more than 205 pounds?
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