Mrs. Jones Algebra 2 class scored very well on yesterday?s quiz. With one exception, everyone receiv

Mrs. Jones Algebra 2 class scored very well on yesterday’s quiz. With one exception, everyone received an A. Within how many standard deviations from the mean do all the quiz grades fall?
91, 92, 94, 88, 96, 99, 91, 93, 94, 97, 95, 97
A. 2

 

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