A disadvantage of using an arithmetic mean to summarize a set of data is that the arithmetic mean
A) sometimes has two values.
B) can be used for interval and ratio data.
C) is always different from the median.
D) can be biased by one or two extremely small or large values.

Question

Quizplus · Accepted Answer

The arithmetic mean can be heavily influenced by outliers, also known as extremely large or small values, causing it to be biased towards these values. Therefore, it may not accurately represent the central tendency of the data.

A Disadvantage of Using an Arithmetic Mean to Summarize a Set