Which of the following is not a measure of variability a Var

Which of the following is not a measure of variability?

a) Variance

b) Range

c) Standard Deviation

d) Median

Solution

Measures of variability, are statistical procedures to describe how spread out the data is. They are:

Range: defined as a single number representing the spread of the data.
Standard deviation: defined as a number representing how far from the average each score is.
Variance: defined as a number indicating how spread out the data is.

Hence, out of the 4 given options, Median is not a measure of variability. (Option -d)