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.
Verify that the probability distribution for S S\,S is
| sss | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| P(S=s)P(S = s)P(S=s) | 0.05 | 0.125 | 0.2 | 0.275 | 0.35 |
215 exam-style questions on Edexcel A Level Maths Statistical Distributions, covering 6.1 Probability Distributions, 6.2 The Binomial Distribution, and 6.3 Cumulative Probabilities. Each one has a worked solution and a mark scheme showing where the marks go.