Question

4.Consider the data set represented by the ordered stem and leaf diagram 10 0 0 9...

4.Consider the data set represented by the ordered stem and leaf diagram

10 0 0
9 1 1 1 1 2 3
8 0 1 1 2 2 3 4 5 7 8 8 9
7 0 0 0 1 1 2 4 4 5 6 6 6 7 7 7 8 8 9
6 0 1 2 2 2 3 4 4 5 7 7 7 7 8 8
5 0 2 3 3 4 4 6 7 7 8 9
4 2 5 6 8 8
3 9 9

a. Find the percentile rank of the grade 75.

b. Find the percentile rank of the grade 57.

0 0
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Answer #1

Total given data points = 71

Data points with value less than or equal to 75 = 42

Percentile rank = 42/71 *100= 59.1549

B) number of data points less than equal to 57. = 16

Percentile rank = 16/71 * 100 = 22.5352

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