Percentiles separate data sets into 100 equal parts. The percentile rank of a data value is the percentage of data values that are less than or equal to that value.
Multiple Choice Of 25 test scores, eight are less than or equal to 75. What is the percentile rank of a test score of 75?
The percentile rank of 75 is 32. The correct answer is C.
How else could you find the percentile rank?
You could solve the proportion
Identify the minimum, first quartile, median, third quartile, and maximum of each data set. Then make a box-and-whisker plot of each data set.
Arm Spans (in.)