The nth root of the product of the n observations is the
A) weighted mean.
B) geometric mean.
C) product deviation.
D) product variance.

Question

Quizplus · Accepted Answer

The nth root of the product of n observations is the definition of the geometric mean. It is often used to find the central tendency of a set of numbers when the numbers vary greatly in magnitude. The weighted mean takes into account different weights assigned to each observation, product deviation is a term not commonly used in statistics, and product variance is a measure of the spread of the data, not the central tendency.

The Nth Root of the Product of the N Observations