AP and TS EAMCET Engineering Model Paper 3
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Question : 25 of 160
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Mean of the numbers 1 , 2 , 3 , . . . . . n with respective frequecies 1 2 + 1 , 2 2 + 2 , 3 2 + 3 , . . . . . . , n 2 + n is
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