Question: The following table shows four rows from a frequency distribution table for a sample of n = 50 scores. Use interpolation to find the percentiles

The following table shows four rows from a frequency distribution table for a sample of n = 50 scores. Use interpolation to find the percentiles and percentile ranks requested:

X f cf c%

15 5 32 64 14 8 27 54 13 6 19 38 12 4 13 26

a. What is the percentile rank for X = 13?

b. What is the percentile rank for X = 15?

c. What is the 50th percentile?

d. What is the 60th percentile?

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