Answer:
[tex]\frac{1}{16}[/tex]
Step-by-step explanation:
If train arrives between 2:00 to 3:00 (60min) and waits for 20 min and leaves, probability of finding train in that 60 min is [tex]\frac{20}{60}=\frac{1}{3}[/tex].
Probability of finding John is [tex]\frac{1}{60}[/tex] can arrive any minute.
now the probability of finding both john and train is [tex]\frac{1}{60}[/tex]*[tex]\frac{20}{60}[/tex]=[tex]\frac{1}{16}[/tex].
This is compound Probablity Problem.
