13. Find the mean of the following frequency distribution1151251351451 – InterviewSolution

1.

13. Find the mean of the following frequency distribution115125135145155165254020EDIAN

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Mean = Summation of f*x / Summation of f= (115*5 + 125*25+ 135*4 + 145*6 + 155*40+ 165*60 ) / ( 5+25+4+6+40+60)= 21210 / 140= 151.5

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