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A random sample of 64 students were asked to rate the schoolcafeteria food on a scale from 1 to 30. The sample mean was 22,

A random sample of 64 students were asked to rate the schoolcafeteria food on a scale from 1 to 30. The sample mean was 22, andthe sum of squares was 1,008. a. Calculate the standard deviation o 1 answer

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