Calculating a weighted average or a cumulative grade point average involves using a coefficient to give a \\"weight\\" to each score. Generally used in a high school or university situation, a cumulative weighted average takes into account a student's grades across all their classes. This allows for the calculation of their overall grade, and final GPA (grade point average). The equation for calculating a weighted average is as follows: Good to know Weighted average = sum (values x their respective coefficient number) / sum of coefficient numbers Example: Juliette wants to calculate her overall average. Here are her scores and their coefficients: GPA = (11 x 4) + (6 x 3) + (15 x 2) + (17 x 3) / (4 + 3 + 2 + 3) = 143 / 12 = 11,92