The mean of first 10 natural numbers is:
4.5
5.5
6.5
5
The first 10 natural numbers are 1 to 10.
Sum of first n natural numbers = n(n+1)2
So, Sum of first 10 natural numbers is 55
Mean= 5510 = 5.5
The mean of first 10 natural numbers is ______.
The mean of first 10 even natural numbers is ___