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how to find weighted mean formula. Suppose your teacher says The test counts twice as much as the quiz and the final exam counts three times as much as the quiz. Multiply the weight by each value.
For example to calculate the weighted average scores from the semester exams combined. To calculate a weighted average in Excel simply use SUMPRODUCT and SUM. Weighted average 7575.
Weighted average 7575.
If all the weights are equal then the weighted mean is the same as the arithmetic mean. It is simply calculated by taking a sum of all the data points and dividing by a number of data points. Weighted average 010 45 015 50 025 65 050 95. Weighted average 7575.