Chapter 11: Statistics
Collecting, representing and analysing data, and the sampling variability that limits what a sample can tell you.
The chapter problem
The poll that got it wrong. A poll predicted one result and the vote gave another. You will work out how a sample of that size could be that far out, and by the end of the chapter you can say what a margin of error does and does not promise.
Where it is used: Surveys, polls, quality control, and every claim made from a sample.
Your turn to connect it: Where have you seen a percentage from a survey used to argue for something?
Sections
- 11.1 Populations and samples — tier F · refs 1.5
- 11.2 Sampling methods and bias — tier O · refs 1.5
- 11.3 Representing data: charts and histograms — tier F · refs 1.6
- 11.4 Measures of centre and spread — tier F · refs 1.7
- 11.5 The standard deviation — tier O · refs 1.7
- 11.6 The normal distribution — tier O · refs 1.7
- 11.7 Sampling variability and the margin of error — tier H · refs 1.7
- 11.8 The central limit theorem — tier H · refs 1.7
- 11.9 Hypothesis testing and confidence intervals — tier H · refs 1.7
- 11.10 Correlation and regression — tier O · refs 1.7
- 11.11 Statistical reasoning and misused statistics — tier F · refs 1.4