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[" c) The mean of following distribution...

[" c) The mean of following distribution is "62.8" and the sum of the frequencies is "50." Find "],[" the missing frequencies "f_(1)" and "f_(2)" ."],[[hline" C.I ",0-20,20-40,40-60,60-80,80-100,100-120],[hline F,5,F_(1),10,F_(2),7,8],[hline]]

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