Variability is a measure of how much each score in a group of scores differs from the what?
A) mode
B) median
C) variability
D) mean

Question

Quizplus · Accepted Answer

Variability is measured by calculating the differences between each score and the mean. Therefore, the mean is the best measure of central tendency to use in calculating variability. The mode and median are not as useful since they only take into account the most common or middle values, respectively, and do not consider the entire range of scores. Choice C is erroneous and not an option.

Variability Is a Measure of How Much Each Score in a Group