The probability distribution of a random variable X is given below:

Question

X	0	1	2	3
P(X)	$\Large k$	$\Large \frac{k}{2}$	$\Large \frac{k}{4}$	$\Large \frac{k}{8}$

\begin{array}{1 1}(i)\quad Determine\;the \;value \;of\;k\\(ii)\quad Determine\;.P(X\leq 2)and\;P(X>2)\\(iii)\quad Find\;P(X\leq 2)+P(x>2).\end{array}