The harmonic mean of real positive numbers x1,…,xn is definided as the number of numbers divided by the sum of the inverse of each number, as follow:

We use harmonic mean when we are dealing with observations that are inversely proportional such as speed and time. The harmonic mean is particularly recommended for a number of values that are inversely proportional as to calculate the average speed, average cost of goods.

See how to calculate the **harmonic mean**.

## Leave a Reply