$($a$)$ What is the average cost for the tabiets?

$($b$)$ Compare the average cost of tablets with a Windows operating system to the average cost of tablets with an And roid operating system.

The average cost of a tablet with a Windows operating system is $ The overage cost of a tablet with an Android operating syatem is s Thus we see tablets with Windows operating systems cost $[-$Select$-$V than tabiets with an Androld operating system, en overage.

$($c$)$ What percentage of tablets use a CPU manufactured by TI OMAT? $]\%$

$($d$)$ What percentage of tabiets use an Windows operating system?