The probability of Priya forgetting her homework on any one school day is 0.05. Over 40 school days find the probability that Priya forgets her homework:
Exactly one time
More than four times
Less than three times
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.