how can you find the mean of test scores?

  • Thread starter Thread starter Emy B
  • Start date Start date
E

Emy B

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okay so the question is:

your average score on four tests is 80. what score do you need to get on the fifth exam so that your average will be 83?

a. 95
b. 94
c. 49
d. 45

how can you find the answer if you don't have all four test scores?
 
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