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LearnCambridge97092026–2027Paper 6
Paper 6

Probability & Statistics 2

The Poisson distribution

Poisson probabilities · Scaling rates and sums · Poisson and normal approximations3 subtopic lessons

Linear combinations of random variables

E and Var of aX + b and aX + bY · Sums of observations and multiples · Combining normal and Poisson variables3 subtopic lessons

Continuous random variables

Probability density functions · Mean and variance · Median and percentiles3 subtopic lessons

Sampling and estimation

Sampling and unbiased estimates · The sample mean and the Central Limit Theorem · Confidence intervals3 subtopic lessons

Hypothesis tests

Binomial and Poisson tests · Tests for a population mean · Type I and Type II errors3 subtopic lessons