(Answered) A particular group of men have heights with a mean of 171

Statistics

A particular group of men have heights with a mean of 171 cm and a standard deviation of 8 cm. Carl had a height of 174cm.?

a. What is the positive difference between Carl?'s height and the? mean?

b. How many standard deviations is that? [the difference found in part? (a)]?

c. Convert Carl height to a z score.

d. If we consider? "usual" heights to be those that convert to z scores between minus-2 and? 2, is Carl?'s height usual or? unusual?

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