A discrete random variable Z Z\,Z has the probability function:
| zzz | -1 | 0 | 2 | 6 |
| P(Z=z)P(Z=z)P(Z=z) | 0.18 | 0.27 | ccc | 0.25 |
Find the value of ccc
Find P(Z>0.5)P(Z > 0.5)P(Z>0.5)
Construct a table for the cumulative distribution FZ(z)F_Z(z)FZ(z)
57 exam-style questions on Edexcel AS 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.