For a particular region, each day in October has a wet-day probability of $0.16$, independently of the other days.
(a)[3]
Find the probability that fewer than 3 days are wet during a 10-day period in October.
(b)[2]
Find the probability that the first wet day in October occurs on 8 October.
(c)[2]
For 4 randomly chosen years, determine the probability that exactly 1 of them has its first wet day in October on 8 October.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Valid binomial probability expression for $P(0,1,2)$” …