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26. Find the weighted average of the student's grades listed below, using the given percentage value for each category.AssignmentScore (%)WeightTest 19330%Test 29430%Homework8410%Quizzes7810%Final Exam9420% %

26. Find the weighted average of the student's grades listed below, using the given-example-1
User Christos
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To determine the weighted average of the student's grades, you have to multiply each grade by its corresponding percentage, expressed as a decimal value, and then add the results:


weighted.average=\Sigma(x_iw_i)
\begin{gathered} \text{weighted.average}=93\cdot0.30+94\cdot0.30+84\cdot0.10+78\cdot0.10+94\cdot0.20 \\ weighted\text{ average=}27.9+28.2+8.4+7.8+18.8 \\ \text{weighted average=91.10} \end{gathered}

The weighted average is 91.10

User Sapna Sharma
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