Q21 of 69 Page 6

Find the mean of the following data:


Now,


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19

The mean of the following frequency distribution is 62.8 and the sum of all frequency is 50. Compute the missing frequency f1 and f2 :

 20

The mean of the following frequency distribution is 57.6 and the sum of the frequencies is 50. Find the missing frequencies f1 and f2 :

 22

Find the mean of the following frequency distribution:

 23

Find the mean of the following frequency distribution: