The probability distribution of a random variable X is given below:
(i) Determine the value of k.
(ii) Determine P (X ≤ 2) and P (X > 2)
(iii) Find P (X ≤ 2) + P (X > 2).
We have
(i) Since,
8k+ 4k+ 2k+ k= 8
(ii)
(iii)