Question

Given two independent events X and Y, with P(XlY)=0.45 and the P(X and y)=0.25. what is the P(Y)?

Answer 1

\[P(X/Y) = P(X and Y) / P(Y)\]
\[\rightarrow P(Y) = P(X and Y) / P(X/Y) \]
= 0.25 / 0.45
= 0.55