Question 988459
hannah test grades were 80,85,72 and 92.
 What is her weighted average if the test grades were weighed 2,4,3 and 2, in that order?
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Treat this like there are 11 test, the total of the grade weights
:
A = {{{(2(80) + 4(85) + 3(72) + 2(92))/11}}}
A = {{{(160 + 340 + 216 + 184)/11}}}
A = {{{900/11}}}
A = 81.8 the weighted average