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Grade 49.5-59.4 Find the mean and standard deviation for the following frequency table. (1-midpoint 02 Frequency 2 59.5-69.4 69.5-79.4 38 79.5-89.4 12 89.5-99.4 5

Grade 49.5-59.4 Find the mean and standard deviation for the following frequency table. (1-midpoint 02 Frequency 2 59.5-69.4 69.5-79.4 38 79.5-89.4 12 89.5-99.4 5

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