Mathematics, 01.03.2021 22:00 Mlmyers81

Estimate the mean and the standard deviation of the following frequency distribution. (Round squared deviations to nearest whole number and final answers to 2 decimal places.) ClassFrequency 20 up to 30 7 30 up to 40 12 40 up to 50 21 50 up to 60 18 60 up to 70 12

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Estimate the mean and the standard deviation of the following frequency distribution. (Round squared...