# Weighted Average

Suppose you take exams in your High School Final for five subjects, Math, English, Physics, Chemistry and History. And the common average score is the arithmetic mean which is got by adding all the five scores and dividing by 5. But for admission into Math honors course, the College administration may attach more importance or weights to Math, English and Physics scores when compared to scores gained in Chemistry and History. In such situations weighted average is computed which represents student's necessary skills and knowledge better. Weighted average can also be calculated for other types of mean like Geometric and Harmonic means.