SOLUTION: To get an A in a statistic course a student must score an average of 90% on 4 exams. A student scored an 87, 95 and 92 on the first three exams. What must they score on the last ex
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Question 1046630: To get an A in a statistic course a student must score an average of 90% on 4 exams. A student scored an 87, 95 and 92 on the first three exams. What must they score on the last exam to get an A Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! (87 + 95 + 92 + x)/4 = 90
(87 + 95 + 92 + x) = 360
x =360 - 274
x = 86 student must score on last exam to have an average of 90%
