Find the missing frequencies f1, f2 and f3 in the following frequency distribution, f2 : f3 = 4:3

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Find the missing frequencies
f1, f2 and f3 in the following frequency distribution, given f2 : f3 = 4:3 and mean is 50. Total frequency is 120.
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Sir, by seeing a question, i was feeling tough pronlem you made it very easy, sir
Thank you so much sir

MickyMicheal
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Thank you i thought it was tough but its easy problem

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