average of prime numbers between 1 to 100

By seeing the prime number table we know that 25 prime numbers are existing in between 1 to 100
the following table explains

	Prime numbers
1-25	2,3,5,7,11,13,17,19,23	9
26-50	29,31,37,41,43,47	6
51-75	53,59,71,73,61,67	6
75-100	79,83,89,97	4
Total no of prime numbers		25

In the above table shows that from 1 to 25 numbers there are 9 prime numbers.

similarly from 25 to 50 there are 6 prime numbers are there.like wise from 51-75 there are 6 prime numbers and from 75 to 100 there are 4 prime numbers there.

The following table shows the sum of prime numbers

	Prime numbers	sum
1-25	2+3+5+7+11+13+17+19+23	100
26-50	29+31+37+41+43+47	228
51-75	53+59+71+73+61+67	384
75-100	79+83+89+97	348
Sum of the prime numbers		1060

so sum of the prime numbers from 1 to 100 is 1060.

Total no of prime numbers between 1 to 100 is 25.

Average=  sum of elements / no of elements

             = 1060/25

             =42.4

Since average of the prime numbers from 1 to 100 is 42.4