What is the percentile rank for x6? what is the percentile, Ask an Expert

Statistics

Complete the final two columns in the following frequency distribution table and then use interpolation to find the percentiles and percentile ranks requested:

X f cf c%
_________________
10 2
9 5
8 8
7 15
6 10
5 6
4 4

a. What is the percentile rank for X=6?

b. What is the percentile rank for X=9?

c. What is the 25th percentile?

d. What is the 90th percentile?

2. For the following scores, the lowest value is X=13. Place the scores in a frequency table using
a. an interval width of 5.
b. an interval width of 10.

21, 40, 18, 37, 32, 52, 33, 24,13
57, 41, 47, 32, 43, 58, 16, 38, 31
47, 29, 49, 54, 22, 39, 34, 45, 20

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Category:- Statistics and Probability
Reference No.:- M9416067

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