Question

Find the mean for 2.2,10.2,14.7,5.9,4.9,11.1,10.5

Answer 1

Answer:

sum of observation / number of observation

=2.2+10.2+14.7+5.9+4.9+11.1+10.5 /7

=154/7

=22

Answer 2

Answer:

The mean of the given data will be$\frac{17}{2} \ or\ 8.5$.

Step-by-step explanation:

Given data is$2.2,10.2,14.7,5.9,4.9,11.1,10.5$.

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 is used 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,

$2.2,10.2,14.7,5.9,4.9,11.1,10.5$

Here,

$\text { Sum of terms }=2.2+10.2+14.7+5.9+4.9+11.1+10.5=59.5\\\text { Number of terms }=7$

So, the mean of the above data will be:

$\begin{aligned}\text { Mean } &=\frac{\text { Sum of terms }}{\text { Number of terms }} \\\text { Mean } &=\frac{59.5}{7}\\\\\text { Mean } &=\frac{595}{70} \\\\\text { Mean } &=\frac{17}{2}\\\\\text { Mean } &=8.5\end{aligned}$