4MA1/2HR Jun 2024, Question 14: Tree Diagrams for Independent Events
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Given P(Heads) = 0.8 and P(6 and Heads) = 0.24 for a biased dice and coin, find the probability of rolling 6 and getting Tails.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1P(6 and Heads) = P(6) × 0.8 = 0.24, so P(6) = 0.24 ÷ 0.8 = 0.3
- 2P(Tails) = 1 − 0.8 = 0.2
- 3P(6 and Tails) = 0.3 × 0.2 = 0.06
Answer0.06
Stuck on a step? Read the free lesson: Tree Diagrams for Independent Events
Practise more tree diagrams for independent events questions
Real 4MA1 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on tree diagrams for independent events
Also searched as: 4MA1 2HR June 2024 · 4MA1/2HR · 4ma1 jun24 2hr · question 14.
Lemmara is an independent study tool, not affiliated with or endorsed by Pearson Edexcel. The worked solutions are Lemmara’s own.