Questions
The arithmetic mean of first n odd natural numbers, is
a
n
b
n2
c
n−12
d
n+12
detailed solution
Correct option is A
First n odd natural numbers are 1,3,5,…,(2n−1)So, required mean =1+3+5+…+(2n−1)n⇒ Required Mean =n2{1+2n−1}n=n.Talk to our academic expert!
Similar Questions
. If the mean of the distribution is 2.6, then the value of y is
| Variate x | 1 | 2 | 3 | 4 | 5 |
| Frequency f of x | 4 | 5 | y | 1 | 2 |
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