Stage 9 - Q2 - 3 marks
19928
Use the independent-event tree to find \(P(\text{exactly one of A and B})\).
\(\frac{1}{2}\)
\(\frac{1}{2}\)
A
not A
\(\frac{3}{5}\)
\(\frac{2}{5}\)
\(\frac{3}{5}\)
\(\frac{2}{5}\)
A, B
A, not B
not A, B
neither
Hint
Multiply along a path; add only the separate paths you need.