Question

Find the average of all prime numbers between $30$ and $50$.

Answer 1

Find the average of the prime numbers between $30$ and $50$.

$31,37,41,43,47$ are the prime numbers between $30$ and $50$

Average of a set of numbers is calculated as $\frac{1}{n}\sum _{i=1}^n{a}_i$, where $n$ is the number of values and $a_i$ is the data set values.

Average of the prime numbers between $30$ and $50$ is:

$$\begin{gathered} =\frac{31+37+41+43+47}{5} \\ =\frac{199}{5} \\ =39.8 \end{gathered}$$

Hence, the average of prime numbers between $30$ and $50$ is $39.8$.