engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Probability Mean and Variance of Random variables
Let Z denote the number of hours you study on a monday. Also it is known that
P(Z = z) = \(\rm \left\{\begin{matrix} 0.4 & if z = 0\\ kz & if z = 1 \: or \: 2\\ 0 & otherwise \end{matrix}\right. \)
where k is constant.
What is the probability that you study atleast two hours?
1
0.5
2
0.1
3
0.4
4
0.3