The standard deviation is the
A)variance squared
B)square root of the sum of the deviations from the mean
C)same as the expected value
D)positive square root of the variance

Question

Quizplus · Accepted Answer

The standard deviation is the positive square root of the variance, which measures the spread or dispersion of a set of data from its mean. It is not the same as the expected value, and it is calculated by taking the square root of the sum of the squared deviations from the mean divided by the number of data points minus one.

The Standard Deviation Is the