The root mean square is another name for the
A) standard deviation.
B) variance.
C) crude range.
D) interquartile range.

Question

Quizplus · Accepted Answer

The root mean square is a measure of the dispersion of a set of values and is calculated as the square root of the average of the squared deviations from the mean. This is mathematically equivalent to the standard deviation, making choice A the correct answer. The variance is also related to the spread of data, but it is not the same as the root mean square. Crude range and interquartile range are measures of the spread of data, but they are not related to the root mean square.

The Root Mean Square Is Another Name for the