The mean and standard deviation of 500 students who took a statistics final were 72 and 8, respectively. The grades have a mound-shape distribution. Based upon this information, the best estimate of the number of students who scored between 56 and 88 is 68% 95% 340 475 375
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We know the mean (μ) is 72 and the standard deviation (σ) is 8. Show more…
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