The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 110, while the mean score was 74 and the standard deviation was 8. 50 58 66 74 82 90 98 Distribution of Test Scores What is the approximate percentage of students who scored between 58 and 90 on the test? % What is the approximate percentage students who scored between 66 and 82 on the test? % What is the approximate percentage of students who scored between 66 and 74? % What is the approximate percentage of students who scored lower than 50 on the test? %
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Step 1: Calculate the Z-scores for the given test scores: - For 58: Z = (58 - 74) / 8 = -2 - For 90: Z = (90 - 74) / 8 = 2 Show more…
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