SOLUTION: what is the average over all grade if the first three tests are 54%, 77% and 83%

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Question 808067: what is the average over all grade if the first three tests are 54%, 77% and 83%
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(0.54+0.77+0.83)/3=0.71=71%