Question: 2. Find (1) the class marks for each height interval (2) find the mean (3) standard deviation for the table below [IMPORTANT: Show t HEIGHT

2. Find (1) the class marks for each height interval (2) find the mean (3) standard deviation for the table below [IMPORTANT: Show t HEIGHT m NUMBER CLASS MARK 30-39 15 34-5 S 40-49 22 X 50-59 27 60-69 26 by.5 70-79 10 74 . 5

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