6.1, 6.2 Normal Distribution

Problem 1

According to a study done by statistics students, the height for Chinese adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. Suppose one Chinese adult male is randomly chosen.

  1. Find the probability that the person is between 65 and 70 inches.
  2. What percent of Chinese adult males are over 71.5 inches?

 

Correct Answers
  1. 0.600623
  2. 0.0139035

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