The geometric mean of four observations is the

A) same as their weighted mean.
B) same as their arithmetic mean.
C) square root of the product of the 4 observations.
D) fourth root of the product of the 4 observations.

Geometric Mean

The central tendency of a set of numbers that is calculated by taking the nth root (where n is the count of numbers) of the product of the values.

Weighted Mean

The mean obtained by assigning each observation a weight that reflects its importance.

Arithmetic Mean

The sum of a set of numerical values divided by the number of values, commonly referred to as the average.