The mean of the following frequency distribution is 62.8. Find the missing frequency x.

1 Answer

answered Feb 9, 2018 by mdsamim (213,225 points)
selected Feb 9, 2018 by sforrest072

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classes	0-20	20-40	40-60	60-80	80-100	100-120
frequency	5	8	x	12	7	8

The mean of the following frequency distribution is 62.8. Find the missing frequency x.

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