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60The following frequency table summarizes the ages of 65 shoppers at the local grocery store
60The following frequency table summarizes the ages of 65 shoppers at the local grocery store. Calculate the sample variance and standard deviation for this data set. (Hint: First calculate class mid-points and the Mean for the grouped data)Age Frequency18-28 1028-38 1638-48 1548-58 1058-68 868-78 6
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