A museum has 13 scrolls awaiting restoration: 6 are from the Dynasty era, 4 are from the Classical era and 3 are from the Hellenistic era. Two scrolls are selected at random without replacement.
Construct a complete tree diagram showing all outcomes and the conditional probabilities on its branches.
Find the exact probability that one Classical scroll and one Hellenistic scroll are selected.
164 exam-style questions on WJEC A Level Maths 4.1 Probability (A-level only), covering 4.1.1 Probability (A-level only), 4.1.2 Probability (A-level only), and 4.1.3 Probability (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.