Equation for Set of average values

[Guest]

Hello everyone

I need help to write an equation. I know about about the half part of equations.

[tex]\sum_{i=1}^{n } T_i/n[/tex]

This equation will give the average value in one interval. This equation is considered as first value. So to write an equation which will represent set of multiple values. What things will I need to add this equation ?

[shyamjayakannan]

Let there be [tex]p[/tex] sets of values whose average we want and let [tex]T_{i,r}[/tex] denote the [tex]r^{th}[/tex] element of set [tex]i[/tex]. Also, let [tex]n_i[/tex] be the number of elements in set [tex]i[/tex].

Now, the average of all the values in set [tex]i,a_i=\frac{1}{n_i}\sum_{r=1}^{n_i}T_{i,r}[/tex]

So, the average of values in all sets [tex]=\frac{1}{p}\sum_{i=1}^pa_i=\boxed{\frac{1}{p}\sum_{i=1}^p\frac{1}{n_i}\sum_{r=1}^{n_i}T_{i,r}}[/tex]