The variance of a sample of 169 observations equals 576.The standard deviation of the sample equals
A) 13.
B) 24.
C) 576.
D) 28,561.

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) 28,561.
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Question

Quizplus · Accepted Answer

The formula for the standard deviation is the square root of the variance. Thus, we take the square root of 576 to get:

sqrt(576) = 24

Therefore, the standard deviation of the sample is 24. The correct answer is B).

The Variance of a Sample of 169 Observations Equals 576