In addition to being measured by central tendency, group data can be measured by variability in descriptive statistics. The standard deviation from the mean is a measure of average deviation from the mean in a set of scores. Which of the following sets of scores will have the greatest standard deviation?
A)3, 7, 10
B)15, 17, 23, 27
C)4, 7, 8, 20
D)4, 7, 8, 10

Question

Quizplus · Accepted Answer

The spread of scores (difference between smallest and largest number in the set) is greatest for this set, so it will have the greatest standard deviation.

In Addition to Being Measured by Central Tendency, Group Data