The Square Root of the Variance is Called the ________

Question

The square root of the variance is called the ________.
A) mean
B) standard deviation
C) standard error
D) covariance
E) None of these choices are correct.

Accepted Answer

The square root of the variance is the standard deviation, which is a measure of variability in a set of data. It is a commonly used statistic in descriptive statistics and is essential in inferential statistics to determine confidence intervals and test hypotheses. A standard deviation that is closer to zero indicates that the data points are tightly clustered around the mean, while a higher standard deviation indicates that the data points are more spread out.