1. What is the Arithmetic mean of the first ‘n’ natural numbers ?
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By: anil on 05 May 2019 01.51 am
Arithmetic Mean = $$frac{Sumof Elements}{NumberofElements}$$ Sum of first n natural numbers = $$frac{n(n+1)}{2}$$ Arithmetic Mean of first n natural numbers = $$frac{n(n+1)}{2 imes n}$$ = $$frac{n+1}{2}$$
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