plumiConditional probability: Edexcel A‑Level Maths questions
Edexcel A-Level Maths past-paper questions on 3.2 Conditional probability, 2010–2025, with mark schemes and examiner’s reports where available. Add MadAsMaths questions to your practice, or browse them separately by topic and difficulty.
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All 10 questions on Conditional probability, as a list
- June 2025, Statistics, Q1 (9 marks): Bag A contains 5 red, 4 yellow and 3 green beads. Bag B only contains red and yellow beads. A bead is selected at random from bag A and a second bead is selecte
- June 2024, Statistics, Q6 (11 marks): The Venn diagram, where p, q and r are probabilities, shows the events A, B, C and D and associated probabilities. A B C r 0.05 0.27 0.25 0.08 p D q (a) State a
- June 2023, Statistics, Q1 (6 marks): The Venn diagram, where p and q are probabilities, shows the three events A, B and C and their associated probabilities. A 0.13 0.3 0.25 0.05 C p q B (a) Find P
- June 2023, Statistics, Q5 (8 marks): Tisam is playing a game. She uses a ball, a cup and a spinner. The random variable X represents the number the spinner lands on when it is spun. The probability
- June 2022, Statistics, Q5 (10 marks): A company has 1825 employees. The employees are classified as professional, skilled or elementary. The following table shows • the number of employees in each c
- November 2021, Statistics, Q4 (11 marks): A large college produces three magazines. One magazine is about green issues, one is about equality and one is about sports. A student at the college is selecte
- November 2021, Statistics, Q5 (11 marks): The heights of females from a country are normally distributed with • a mean of 166.5 cm • a standard deviation of 6.1 cm Given that 1% of females from this cou
- November 2020, Statistics, Q1 (8 marks): The Venn diagram shows the probabilities associated with four events, A, B, C and D A 0.07 0.16 0.24 C B s r q p D (a) Write down any pair of mutually exclusive
- June 2019, Statistics, Q1 (8 marks): Three bags, A, B and C, each contain | red marble and some green marbles. Bag A contains | red marble and 9 green marbles only Bag B contains 1 red marble and 4
- June 2018, Statistics and Mechanics, Q5 (14 marks): The lifetime, L hours, of a battery has a normal distribution with mean 18 hours and standard deviation 4 hours. Alice’s calculator requires 4 batteries and wil
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