+127 Sophia has averaged 13% lower in 5 of a course's tests, compared to the first two she took. by approximately what percent did her grade go down as a result of those 5 lower-scoring tests?
5star rating if u answer it correctly.
+37153 Say she scored 50 % on the first two exams that would 50 and 50
she scored 13% lower on the next 5 that would be 37 and 37 and 37 and 37 and 37
Add all of her scores and divide by the number of scores to find her NEW average
(50+50 + 37 + 37 + 37 +37 + 37 ) / 7 = 40.71
She HAD a 50% average, now it has gone DOWN to 40.71 % Down 9.28% points.
