$\backslash$table$[[$Acer Iconia W$510,599,$Windows,$10\mathrm{.}1,8\mathrm{.}5,$Intel$],[$Amazon Kindle Fire HD$,299,$Android,$8\mathrm{.}9,9,$TI OMAP$],[$Apple iPad $4,499,$iOS,$9\mathrm{.}7,11,$Apple$],[$HP Envy X$2,860,$Windows,$11\mathrm{.}6,8,$Intel$],[$Lenovo ThinkPad Tablet,$668,$Windows,$10\mathrm{.}1,10\mathrm{.}5,$Intel$],[$Microsoft Surface Pro,$899,$Windows,$10\mathrm{.}6,4,$Intel$],[$Motorola Droid XYboard,$530,$Android,$10\mathrm{.}1,9,$TI OMAP$],[$Samsung Ativ Smart PC$,590,$Windows,$11\mathrm{.}6,7,$Intel$],[$Samsung Galaxy Tab,$525,$Android,$10\mathrm{.}1,10,$Nvidia$],[$Sony Tablet S$,360,$Android,$9\mathrm{.}4,8,$Nvidia$]]$

a$.$ What is the average cost for the tablets $($to $2$ decimals$)?$

$

b$.$ Compare the average cost of tablets with a Windows operating system to the average cost of tablets with a decimals$).$

Average cost with a Windows operating system $=$$

Average cost with an Android operating system $=$$

The average cost with a operating system is much higher.

c$.$ What percentage of tablets use a CPU manufactured by TI OMAP $($to the nearest whole number$)?$

$\%$

d$.$ What percentage of tablets use an Android operating system $($to the nearest whole number$)?$

$\%$