$1)$ In a data centre, there are three types of servers: Web Servers $($W$),$ Database Servers $($D$),$ and Application Servers $($A$).$ The daily energy consumption $($in kilowatt$-$hours$)$ of each server type and their interaction with each other are represented by the following matrix:

W

D

A

W

$0\mathrm{.}4$

$0\mathrm{.}4$

$0\mathrm{.}3$

D

$0\mathrm{.}2$

$0\mathrm{.}3$

$0\mathrm{.}3$

A

$0\mathrm{.}3$

$0\mathrm{.}2$

$0\mathrm{.}3$

$$

Here, the $$entry of the matrix represents the proportion of energy consumed by server type due to the presence of one server type $.$

If the data centre contains $200$ Web Servers, $500$ Database Servers, and $300$ Application Servers, calculate the total energy consumption contributed by each server type. How would you interpret the results in the context of optimizing energy efficiency in the data centre?