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# In a survey a group of men, the heights in the 20-29 age group we're normally distributed with mean of 67.2 inches, and a a standard deviation of 2.0...

In a survey a group of men, the heights in the 20-29 age group we're normally distributed with mean of 67.2 inches, and a a standard deviation of 2.0 inches. A study participant is randomly selected. What is the probability that a study participant has a height less than 67 inches. What is the probability that a study participant has a height between 67-71 inches? Is it unusual?