If the mean on a test is 90 and the standard deviation is 10, a person with a z-score of -1.0 scored _____ on the test.
A)70
B)80
C)90
D)110

Name: If the mean on a test is 90 and the standard deviation is 10, a person with a z-score of -1.0 scored _____ on the test. A)70 B)80 C)90 D)110
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Question

Quizplus · Accepted Answer

A z-score of -1.0 indicates that the person scored one standard deviation below the mean, which is 90-10=80. Therefore, the person with a z-score of -1.0 scored 80 on the test.

If the Mean on a Test Is 90 and the Standard