Question

find the mean of 13,20,7,15,10​

Answer 1

$\textbf{SOLUTION-}$

Numbers - 13 , 20 , 7 , 15 , 10

Total numbers - 5

Mean is given by

$\frac{Sum\:of\:observations}{Total\:number\:of\:observations}$

Using this formula we get,

Mean = $\frac{13+20+7+15+10}{5}$

Mean = $\frac{65}{5}$

Mean = 13

Hence,

Mean of the numbers given = $\huge{30}$

Answer 2

Given: $13,20,7,15,10$

We have to find the mean of the above data.

• As we know that the mean of a data set is the sum of the terms divided by the total number of terms.
• The formula for mean is:
• $\text { Mean }=\frac{\text { Sum of terms }}{\text { Number of terms }}$

We are solving in the following way:

We have,

$13,20,7,15,10$

Here,

$\text { Sum of terms }=13+20+7+15+10=65\\\text { Number of terms }=5$

Now, the mean of the given data will be:

$\begin{aligned}\text { Mean } &=\frac{\text { Sum of terms }}{\text { Number of terms }} \\\text { Mean } &=\frac{65}{5} \\\text { Mean } &=13\end{aligned}$

Hence, we get

$\begin{aligned}\text { Mean } &=13\end{aligned}$