IB Statistics and Probability Problem 004
The random variable \(X\) follows the probability distribution below, where \(P(X > 1) = 0.5\).
- Find the value of \(r\).
- Given that \(E(X) = 1.4\), find the value of \(p\) and the value of \(q\).
The random variable \(X\) follows the probability distribution below, where \(P(X > 1) = 0.5\).