The variance of a sample of 169 observations equals 576. The standard deviation of the sample equals
A)13
B)24
C)576
D)28,461

Name: The variance of a sample of 169 observations equals 576. The standard deviation of the sample equals A)13 B)24 C)576 D)28,461
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Question

Quizplus · Accepted Answer

The formula for calculating the standard deviation is the square root of the variance. 
Therefore, the standard deviation is the square root of 576, which equals 24. 
Thus, the correct answer is choice letter B.

The Variance of a Sample of 169 Observations Equals 576