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Tresset [83]
3 years ago
12

Kimberly's grade in Algebra is comprised of tests (40%), quizzes (40%), and a final project (20%). Her scores for each of the ca

tegories are 82 on tests, 100 on quizzes, and a 84 on her final project. Compute her weighted average for the class. (to the nearest tenth of a percent) A) 86.4% B) 88.6% C) 89.1% D) 89.6%
Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

D) 89.6 %

Average  or mean of the given data = 89.6 %

Step-by-step explanation:

<em><u>Step(i):-</u></em>

Given data

        X      :     82        100        84

P(X=x)       :    0.40      0.40     0.20

<u><em>Step(ii)</em></u>

Let 'X' be the discrete distribution

Mean of the discrete distribution = ∑ x P( x=x)

                                                       = 82 ×0.40 +100 ×0.40 +84 ×0.20

                                                       = 89.6

<u><em>Final answer:-</em></u>

Average of the given data = 89.6 %

         

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