A researcher records the following scores on a working memory quiz for two samples.Which sample has the largest standard deviation?
Sample A: 2,3,4,5,6,7,and 8
Sample B: 4,5,6,7,8,9,and 10
A) Sample A
B) Sample B
C) Both samples have the same standard deviation.

Question

Quizplus · Accepted Answer

Both samples have the same range (6) and are equally spaced. The standard deviation, which measures the dispersion of a dataset relative to its mean, does not change with a uniform shift in all data points. Thus, both samples have the same standard deviation.

A Researcher Records the Following Scores on a Working Memory