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mel4245
14.08.2020 •
Mathematics
Kimberly's grade in Algebra is comprised of tests (40%), quizzes (40%), and a final project (20%). Her scores for each of the categories 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%
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Ответ:
D) 89.6 %
Average or mean of the given data = 89.6 %
Step-by-step explanation:
Step(i):-
Given data
X : 82 100 84
P(X=x) : 0.40 0.40 0.20
Step(ii)
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
Final -
Average of the given data = 89.6 %
Ответ: