Question

The mean of first n odd natural number is
A)(n+1)/2
B)n/2
C)n^2
D)n

Answer 1

Answer:

Step-by-step explanation:

1.for example let 5 odd natural numbers they are:

                                                                                   1,3,5,7,9

mean=   1+3+5+7+9/5

                  =5

the mean of first 'n'odd natural numbers is n

Answer 2

Answer:

The answer is n

Step-by-step explanation:

A. P. is 1,,3,5,..................n

here,

a= 1

d = 3-1

=1

sum= n/2[2a+(n-1)d]

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

= n/2[2+2n-2]

= n/2*2n

= n^2

now

mean = n^2/n

= n

I hope it helps you!!!!