Question
The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible...
The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 120, while the mean score was 74 and the standard deviation was 10.
445464748494104
Distribution of Test Scores
Use the "Empirical Rule", not a calculator or other technology.
What is the approximate percentage students who scored between
64 and 84 on the test?
%
What is the approximate percentage of students who scored between
54 and 94 on the test?
%
What is the approximate percentage of students who scored higher
than 94 on the test?
%
What is the approximate percentage of students who scored between
74 and 84 on the test?
%
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