Leroy asks 60 people which sports they watch. They can choose from football (F), golf (G) and hockey (H). 4 people watch all three sports. 10 people watch football and golf 9 people watch golf and hockey 11 people watch football and hockey 34 people watch football 16 people watch golf 20 people watch hockey.
One of the people is selected at random. Given they watch football, find the probability they do not watch hockey.
368 exam-style questions on Edexcel A Level Maths Conditional Probability, covering 2.1 Set Notation, 2.2 Conditional Probability, 2.3 Conditional Probabilities in Venn Diagrams, 2.4 Probability Formulae, and 2.5 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.