Richard throws a dart at a target. He assumes that each throw is independent of every other throw and that the probability he hits the target on any throw is 15\displaystyle \frac{1}{5}51.
Richard throws 8 darts. Find the probability that at least 3 of them hit the target.
Richard throws 8 darts at the target on each of 3 days. Find the probability that at least 3 darts hit the target on exactly 1 of these 3 days.
390 exam-style questions on AQA A Level Maths 2.4 N: Statistical distributions, covering 2.4.1 Discrete distributions and the binomial, 2.4.2 The Normal distribution (A-level only), and 2.4.3 Selecting an appropriate distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.