# Statistics

posted by Ben

your medical terminology instructor listed the following grades for the class out of a 75 point test:
33,34,43,45,45,54,55,59,60,62,64,66,67,68,67,68,68,69,70,70
a.find the 90th percentile

1. Kuai

a.
k =90

n = 20

90th percentile = k/100 *n

90/100* 20

=18

90th percentile = 69

b.

percentile = R/(n +1)

8/(20+ 1)

8/21 = .38095 *100 =

2. Anonymous

40

3. jun

90

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