In a game 1, 2, 3, 4 or 5 points can be scored. The random variable S S\,S represents the number of points scored.
P(S=n)=0.05+(n−1)×a P(S = n) = 0.05 + (n - 1) \times a P(S=n)=0.05+(n−1)×awhere a a\,a is a constant.
Find the probability distribution for SSS.
47 exam-style questions on WJEC A Level Maths 2.4 Statistical distributions, covering 2.4.1 Statistical distributions, 2.4.2 Statistical distributions, and 2.4.3 Statistical distributions. Each one has a worked solution and a mark scheme showing where the marks go.