The variance of a sample of 100 observations equals 64. The standard deviation of the sample equals
A) 8.
B) 10.
C) 4096.
D) 10,000.

Name: The variance of a sample of 100 observations equals 64. The standard deviation of the sample equals A) 8. B) 10. C) 4096. D) 10,000.
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Quizplus · Accepted Answer

The standard deviation is the square root of the variance. Since the variance is 64, the standard deviation is the square root of 64, which equals 8.

The Variance of a Sample of 100 Observations Equals 64