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Mathematics, 25.02.2020 03:20 yonna74

The mean grade in this class last semester was 78.3, and the variance was 49 . The distribution of grades was unimodal and symmetrical. Determine how many students are likely to fail the class (<60), and how many students are likely to get a "A" (>90), if 60 students are enrolled. Show all your work, and provide a sentence explaining each step of your calculation

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