A box contains 10 milk chocolates and 8 dark chocolates. Connor takes two chocolates at random.
Verify that the probability Connor takes two dark chocolates is 28153\displaystyle \frac{28}{153}15328.
Verify that the probability Connor takes one milk chocolate and one dark chocolate is 80153\displaystyle \frac{80}{153}15380.
186 exam-style questions on Edexcel A Level Maths Probability, covering 5.1 Calculating Probabilities, 5.2 Venn Diagrams, 5.3 Mutually Exclusive and Independent Events, and 5.4 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.