find the arithmetic mean of natural numbers 1;2;3___n
Answers
Answered by
1
Answer:
4 is answer put it I am a mathematician
Answered by
1
Answer:
(n+1) / 2
Step-by-step explanation:
sum of n numbers = n(n+1) /2
arithmetic mean = sum/ total no
= (n(n+1)/2) /n
= n+1/2
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