Raheem asks 50 people which sports they watch. They can choose from football, golf and hockey.
5 people watch all three sports. 8 people watch football and golf 7 people watch golf and hockey 9 people watch football and hockey 31 people watch football 13 people watch golf 17 people watch hockey.
Draw a Venn diagram for this information.
Two people are selected at random find the probability they both watch football.
200 exam-style questions on OCR (MEI) A Level Maths 2.3 Probability, covering 2.3.1 Calculate the probability of an event, 2.3.2 Complementary events, 2.3.3 Expected frequency of an event, 2.3.4 Diagrams to calculate probabilities, 2.3.5 Mutually exclusive and independent events, 2.3.6 Add probabilities for mutually exclusive events, 2.3.7 Multiply probabilities for independent events, 2.3.8 Mutually exclusive and independent events (notation) (A-level only), 2.3.9 Venn diagrams for probabilities (A-level only), 2.3.10 Conditional probabilities (A-level only), and 2.3.11 Independence via conditional probability (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.