The standard deviation is defined as the:
A)positive square root of the variance
B)positive square root of the range
C)negative square root of the variance
D)positive square root of the mean or median

Question

Quizplus · Accepted Answer

The standard deviation is defined as the square root of the variance, which is the average of the squared differences from the mean. It is always non-negative, so the negative square root option is incorrect. It is also not related to the range, mean, or median in the same way as the variance. Therefore, A is the correct choice.

The Standard Deviation Is Defined as The