1.

Find the mean of the following data by shortcut method. Marks 20 22 25 30 35 39 45 50 Total Frequency 4 6 8 10 8 7 5 2 50

Answer» Find the mean of the following data by shortcut method.





























Marks 20 22 25 30 35 39 45 50 Total
Frequency 4 6 8 10 8 7 5 2 50


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