Question

The arithmatic mean of 1,2,3,....,n is
(a) n/2
(b) n+1/6
(c) n/2 + 1
(d) 2n + 1/2​

Answer 1

Answer:

arithmetic mean= n(2a+(n-1))/2n

=1+(n-1)/2

=1+n/2

(c) is the answer

Answer 2

Answer:

( C ) is the right answer...

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