Multiply points by weighting factors and add the results. Then divide that sum by the sum of the weighting factors, which is 7. That will give you the weighted average. It is about 443.
This question has nothing to do with physics.
John's approval rating is an average based upon 4 categories. What is his overall weighted rating if the following is true?
Category 1= 450 points weight factor 1
Category 2= 475 points weight factor 2
Category 3= 500 points weight factor 1
Category 4= 400 points weight factor 3
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