Question

Find the mean of the first $10$ prime numbers?

Answer 1

Compute the required mean:

According to the definition of prime numbers, Prime numbers are those numbers which are only divisible by $1$ and by the number itself.

Since The first ten prime numbers are as follows: $2,3,5,7,11,13,17,19,23,29$.

We know that the formula of the mean can be given as:

$\text{Mean=}\frac{\text{Sum of all the observations}}{\text{Total number of observations}}$

Now, Compute the required mean.

$Mean=\frac{2+3+5+7+11+13+17+19+23+29}{10}=\frac{129}{10}=12.9$

Hence, the mean is $12.9$.