Find x when mean is 31:4Class:0-10 10-20 20-30 30-40 40-50 50-60 Frequ

1.	Find x when mean is 31:4Class:0-10 10-20 20-30 30-40 40-50 50-60 Frequency :5 x 10 12 7 8
Answer» If mean is 31.4 then x =8

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