Asked by Cam
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 ? Ó =3.1
95, 92,94,88,96,99,91,93,94,97,95,97
95, 92,94,88,96,99,91,93,94,97,95,97
Answers
Answered by
Steve
font problems. Is that supposed to be sigma = 3.1?
If so, just figure the mean, and find the maximum difference of each grade from the mean. Then divide that by 3.1 to get the number of std.
If so, just figure the mean, and find the maximum difference of each grade from the mean. Then divide that by 3.1 to get the number of std.
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