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Chapter 3 Review Homework Question 21
Chapter 3 Review Homework
21.
The following graph is an ogive of a standardized test’s scores. The vertical axis in an ogive is the cumulative relative frequency and can also be interpreted as a percentile. Complete parts a through c.
a) Find and interpret the percentile rank of a test score with a value of 140
A test score of 140 corresponds to the ___ percentile rank since this percentage of test scores are _______ a test score with a value of 140
.
b) Find and interpret the percentile rank of a test score with a value of 160. A test score of 160 corresponds to the _____ percentile rank since this percentage of test scores are _______ a test score with a value of 160
.
.c) What score corresponds to the 10th percentile?
The 10th percentile corresponds to a test score of _____