SOLUTION: Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final exam. Find the weighted mean if the quizzes each count for 15% and the final exam counts for 55% of the final

Algebra ->  Probability-and-statistics -> SOLUTION: Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final exam. Find the weighted mean if the quizzes each count for 15% and the final exam counts for 55% of the final      Log On


   



Question 924609: Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final exam. Find the weighted mean if the quizzes each count for 15% and the final exam counts for 55% of
the final grade.
A) 78.9 B) 72.1
C) 78.3 D) 75.5

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
%2867%2B64%2B87%29%2F3+ = 218/3
.45%28218%2F3%29+%2B+.55%2884%29+ = 78.9