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test scores are 3 times as much as as quiz scores. Test scores are 85,92 and quiz scores are 82,75,95 and 84. What is the average score?

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2 Answers

make them all quizzes
(85+85+85+92+92+92+82+75+95+84)/10=867/10=86.7, the mean(average) score
If you mean test scores are worth 3 times as much as quiz scores than you simply multiply the test scores by 3 and then find the total average of tests (weighted 3 times) and quizes.
 
(85*3+92*3+82+75+95+84)/10 = 86.7% 
 
Divide by 10 because each test is worth 1 quiz so it is as if there are 10 quizes