Question

find the mean of :10,20,30,40,10,60,80,90

Answer 1

req.mean 10+20+30+40+10+60+80+90/8=340/8=42.5
Hope it helps

Answer 2

Given: $10,20,30,40,10,60,80,90$

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,

$10,20,30,40,10,60,80,90$

Here,

$\text { Sumof terms }=10+20+30+40+10+60+80+90=340\\\text { Number of terms }=8$

Now, the mean of the given data will be:

$\begin{aligned}\text { Mean } &=\frac{\text { Sum of terms }}{\text { Number of terms }} \\\text { Mean } &=\frac{340}{8} \\\text { Mean } &=\frac{85}{2}\end{aligned}$

Hence, we get

$\begin{aligned}\text { Mean } &=\frac{85}{2}\end{aligned}$