or arithmetic mean, all numbers are treated equally and assigned equal weight. But a weighted average assigns weights that determine in advance the relative importance of each data point.

The reciprocal of a number n is simply 1 / n. The weighted harmonic mean is used in finance to average multiples like the price-to-earnings (P/E) ratio because it gives equal weight to each data ...

There are actually three other kinds of mean: the geometric mean, the weighted mean, and the harmonic mean. But for now, we’ll leave those to the pros.

The AVERAGE function calculates the mean of a range of numbers by summing ... the average is 175 gaming PCs sold in New York. The AVERAGE.WEIGHTED function calculates a weighted average, which ...