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