Question

find the mean of 7.4,7.7,9.3,8.0,2.5,7.2,6.9,4.7​

Answer 1

mean=sum of total no. given / total no. given

mean= 7.4+7.7+9.3+8+2.5+7.2+6.9+4.7 / 8

=6.71

Answer 2

Answer:

The mean of the given data will be$\frac{537}{80}$.

Step-by-step explanation:

Given: $7.4,7.7,9.3,8.0,2.5,7.2,6.9,4.7$

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,

$7.4,7.7,9.3,8.0,2.5,7.2,6.9,4.7$

Here,

$\text { Sum of terms }=7.4+7.7+9.3+8.0+2.5+7.2+6.9+4.7=53.7\\\text { Number of terms }=8$

So, the mean of the above data will be:

$\begin{array}{l}\text { Mean }=\frac{\text { Sum of terms }}{\text { Number of terms }} \\\\\text { Mean }=\frac{53.7}{8} \\\\\text { Mean }=\frac{537}{80}\end{array}$