Question

Find the mean of fint 'n odd natural number​

Answer 1

First n odd natural numbers are 1,3,5,..n

This is an A.P.

Here a = 1

d = 2

Sum of n terms = Sn = (n/2)(2a+(n-1)d

= (n/2)(2+(n-1)2)

= (n/2) 2n

= n2

Arithmetic mean = Sum/no. of terms

= n2/n

= n

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