Trung bình có trọng số (hệ số). AVERAGE.WEIGHTED(values, weights, [additional_values, additional_weights, ...])
Cú pháp: =AVERAGE.WEIGHTED(values, weights, [additional_values, additional_weights, ...])
=AVERAGE.WEIGHTED(D2:F2,{2,1,1})=AVERAGE.WEIGHTED(F2:F8,D2:D8)