9709/52/F/M/21 · Statistics February/March 2021 Paper 52
7 questions, 50 marks. Each one links to its official mark scheme.
- Question 1 · 3 marks · Geometric distribution
- Question 2 · 5 marks · Addition, multiplication and tree diagrams, Conditional probability
- Question 3 · 6 marks · Normal probabilities and standardisation, Inverse normal problems
- Question 4 · 6 marks · Probability distributions, Expectation and variance
- Question 5 · 9 marks · Cumulative frequency, median and quartiles, Mean and standard deviation
- Question 6 · 10 marks · Arrangements and permutations, Selections and combinations
- Question 7 · 11 marks · Sample spaces and counting probabilities, Exclusive and independent events, Binomial distribution, Normal approximation to the binomial
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.