Find the average of the prime numbers lying between 69 and 92.

To find: the average of the prime numbers between 69 and 92.

Prime numbers are those number which are divisible by 1 and itself.

​$$\text{Average} = \frac{\text{Sum of prime numbers}}{\text{Number of prime numbers}}$$​​

The prime numbers in the range 69 to 92 are: 71, 73, 79, 83, 89.

Now,

Average = $$\frac{71+73+79+83+89}{5} = \frac{395}{5} ​= 79$$​​

Thus, The average of the prime numbers between 69 and 92 is 79.