9709/51/O/N/21 · Statistics October/November 2021 Paper 51
7 questions, 50 marks. Each one links to its official mark scheme.
- Question 1 · 4 marks · Geometric distribution
- Question 2 · 4 marks · Coded and combined data
- Question 3 · 5 marks · Conditional probability
- Question 4 · 6 marks · Probability distributions, Expectation and variance
- Question 5 · 10 marks · Arrangements and permutations, Selections and combinations, Sample spaces and counting probabilities
- Question 6 · 10 marks · Statistical diagrams, Cumulative frequency, median and quartiles
- Question 7 · 11 marks · Normal probabilities and standardisation, Binomial distribution, Inverse normal problems
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.