A drawer contains 8 white socks, 6 black socks, and 6 grey socks. Two socks are pulled from the drawer at random without replacement.
Draw a tree diagram to represent this information.
Find the probability that the two socks pulled are both grey.
Given that at least one of the socks pulled is black, find the probability that both socks are black.
Practise Edexcel A Level Maths Tree Diagrams with exam-style questions for A Level Maths. 27 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
