Question

find the mean :21,22,16,6,15,18,25,9​

Answer 1

Step-by-step explanation:

mean=sum of the observations /no of observations

=21+22+16+6+15+18+25+9/8

=132/8

=124.12

Answer 2

Answer:

The mean of the given data is$\begin{aligned}\frac{33}{2}\end{aligned}$.

Step-by-step explanation:

The given data is 21,22,16,6,15,18,25,9​.

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 to calculate the mean is:

         $\text { Mean }=\frac{\text { Sum of terms }}{\text { Number of terms }}$

We are solving in the following way:

We have,

The given data is 21,22,16,6,15,18,25,9​.

Here,

$\text { Sum of terms }=21+22+16+6+15+18+25+9=132\\\text { Number of terms }=8$

The mean of the above data will be:

$\begin{aligned}\text { Mean } &=\frac{\text { Sum of terms }}{\text { Number of terms }} \\\text { Mean } &=\frac{132}{8} \\\text { Mean } &=\frac{33}{2}\end{aligned}$