Which of the following measures of dispersion are based on deviations from the mean?
A) Variance
B) Standard deviation
C) Mean deviation
D) All of the above

Question

Quizplus · Accepted Answer

All of the given measures of dispersion are based on deviations from the mean. Variance is the average of the squared differences from the mean, standard deviation is the square root of the variance and represents the average deviation from the mean, and mean deviation is the average of the absolute differences from the mean.

Which of the Following Measures of Dispersion Are Based on Deviations