What is the most frequently used measure of variability?
A) mean deviation
B) range
C) variance
D) standard deviation

Question

Quizplus · Accepted Answer

Standard deviation is the most commonly used measure of variability as it takes into account all the data points and provides a more accurate representation of the spread of data compared to range or mean deviation. Variance is also used, but standard deviation is preferred as it is easier to interpret since it is in the same unit as the data.

What Is the Most Frequently Used Measure of Variability