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The frequency distribution of 100 families given below the

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The frequency distribution of 100 families given below, the number of families corresponding to the expenditure groups, 20-40 and 60-80 are missing from the table. However the mean of the distribution is known to be 50. Find the missing frequency.

Expenditure   Frequency

0-20                   14

20-40                  f1

40-60                  27

60-80                  f2

80-100                15

Reference no: EM13585436

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