When the measure of central tendency is the median, which of the following is an appropriate measure of variability?
A)Variance
B)Standard deviation
C)Range
D)All the above

Question

Quizplus · Accepted Answer

When the measure of central tendency is the median, the appropriate measure of variability is the range. This is because the range shows the distance between the highest and lowest values in the data set, which is informative even with a median measure of central tendency. Variance and standard deviation require the use of the mean as the measure of central tendency.

When the Measure of Central Tendency Is the Median, Which