On her past five tests, Julie scored 100,90,67,89, and 78. What was the mean of
MATHEMATICS
SAT 2021
On her past five tests, Julie scored 100,90,67,89, and 78. What was the mean of her scores?
- A. 85.3
- B. 79.9
- C. 84.8
- D. 87.1
Correct Answer: C. 84.8
Explanation
The mean is the same as the average. To find the mean, use the following formula: Mean=Sum of all valuesNumber of Values Mean=(100+90+67+89+78)/5=84.8
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