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LearnEdexcelYMA012018 specificationWST03
WST03

Statistics 3

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

Sampling

Sampling and unbiased estimates · The sample mean and the Central Limit Theorem2 subtopic lessons

Estimation, confidence intervals and tests

Tests for a population mean · Confidence intervals2 subtopic lessons

Goodness of fit and contingency tables

Goodness of fit and contingency tables1 subtopic lessons

Regression and correlation

Summary statistics and the PMCC · The least squares regression line2 subtopic lessons