9709 P63 - Nov 2010 - Q2
2946
In a probability distribution the random variable \(X\) takes the value \(x\) with probability \(kx\), where \(x\) takes values 1, 2, 3, 4, 5 only.
- Draw up a probability distribution table for \(X\), in terms of \(k\), and find the value of \(k\).
- Find \(E(X)\).
