As with measures of centrality, the selection of a measure of variability should be based on
A)the mean and the variance.
B)measurement scale and the shape of the distribution.
C)population variance and standard deviation.
D)the range of the scores and their frequency.

Question

Quizplus · Accepted Answer

The selection of a measure of variability is influenced by the measurement scale (nominal, ordinal, interval, ratio) and the shape of the distribution (normal, skewed, etc.), as these factors determine which measure of variability will be most appropriate and informative.

As with Measures of Centrality, the Selection of a Measure