7. The mean ofthe following frequency distribution is 57.6and the numb – InterviewSolution

1.	7. The mean ofthe following frequency distribution is 57.6and the number of observabinKingdeclis 50. Find the missing frequencics f, &Class Interval 0-20 20 40 4060 60-80 80-100 100-120frequency 712/2l. Fin
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