Find the average of all prime numbers between 42 and 75.

First, let's identify all the prime numbers between 42 and 75:
The prime numbers are: 43, 47, 53, 59, 61, 67, 71, 73.

Count of prime numbers (n) = 8

Now, find the sum of these prime numbers:

Sum=43+47+53+59+61+67+71+73=474
Now, calculate the average:

Average=
n
Sum
​
=
8
474
​
=59.25