The standard deviation of a distribution is the
A)total distance that data points fall away from the mean.
B)sum of the distances that data points fall away from the mean.
C)variance of the data points in the distribution.
D)average distance that data points fall away from the mean.

Question

Quizplus · Accepted Answer

The standard deviation is the square root of the variance, which is calculated by taking the sum of the squared deviations of each data point from the mean, divided by the number of data points minus one. Therefore, the standard deviation can be thought of as the average distance that data points fall away from the mean.

The Standard Deviation of a Distribution Is the