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Group Into Classes And The Class Should Start Fr ID (lower Class). Use The Frequency To Display The Distribution In Pie Chart And Histogram. Find The Mean And Median - Math Discussion

20 30 20 15 15
25 25 18 35 40
12 11 16 16 15
23 18 17 13 13
Group into classes and the class should start fr ID (lower class). Use the frequency to display the distribution in pie chart and histogram. Find the mean and median