Jinsi ya kukokotoa Weighted Average

Weighted Average ni nini?

A weighted average assigns different importance to different values before averaging. Used when some observations should count more than others — such as course grades with different credit hours.

Mwongozo wa Hatua kwa Hatua

1. 1WA = Σ(wᵢ × xᵢ) / Σwᵢ
2. 2Weights need not sum to 1
3. 3Equal weights → ordinary arithmetic mean

Mifano Iliyotatuliwa