Which is NOT a measure of variability?

Which is NOT a measure of variability? (a) Median

(b) Variance

(c) Standard deviation

(d) Range

✅ Correct option: (a) Median

Explanation:

The median is a measure of central tendency, not variability. Variability measures describe how spread out the data are, while central tendency measures describe the center. Variance, standard deviation, and range all measure dispersion, but the median identifies the middle value. Therefore, median is not a measure of variability.

10 Related PPSC Facts:

Median measures center. Variance measures spread. SD measures dispersion. Range shows extremes. Variability indicates consistency. High variability means spread out data. Low variability means clustered data. Central tendency differs from variability. SD is most common variability measure. Variability affects interpretation.