If an extreme score is added to a data set, increasing the range of data, the standard deviation will:
A) get closer to 0.
B) decrease.
C) increase.
D) double.

Question

Quizplus · Accepted Answer

Adding an extreme score to a data set can increase the range of data, which in turn can increase the standard deviation. This is because the standard deviation measures the amount of variation within a data set and the extreme score contributes to this variation.

If an Extreme Score Is Added to a Data Set