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24. Find the weighted average of the student's grades listed below, using the given percentage value for each category.AssignmentScore (%)WeightTest 18030%Test 29230%Homework7610%Quizzes9010%Final Exam7520% %

24 Find the weighted average of the students grades listed below using the given percentage value for each categoryAssignmentScore WeightTest 18030Test 29230Hom class=


Answer :

The weighted average is given by

[tex]WA=\sum x_i\cdot w_i[/tex]

The sum of each value is multiplied by its weight.

[tex]\begin{gathered} WA=(80\cdot0.30)+(92\cdot0.30)+(76\cdot0.10)+(90\cdot0.10)+(75\cdot0.20) \\ WA=24+27.6+7.6+9+15_{} \\ WA=83.2\% \end{gathered}[/tex]

Therefore, the weighted average of student's grades is 83.2%

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