# The heights, in inches, of the members of a barbershop quartet of singers are listed below.72,68,67,73If the population variance for this data set is 6.5, what is the standard deviation of the heights of the barbershop quartet? Round your answer to 2 decimal places.

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The heights, in inches, of the members of a barbershop quartet of singers are listed below.

72,68,67,73

If the population variance for this data set is 6.5, what is the standard deviation of the heights of the barbershop quartet? Round your answer to 2 decimal places.

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Step 1

Formula for standard deviation and variance:

Suppose x1, x2, …, xn is a data set of n observations belonging to a population, and is the population mean for the n observations. Then, the variance is the ave...

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