apt4Stats: Powerpoint for GCSE Statistics (Collecting Data) on SAMPLING AND BIAS - APPLICATION

PowerPoint Presentation on Sampling and Bias - Application (20 slides): Reviews and applies different sampling techniques and explains the Petersen capture-recapture method. It has been written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats examinations. It includes:

Lesson objectives
Step-by-step explanations of the subject matter
Examples to aid understanding
Questions to check understanding
Answers to questions, with explanations
Suggestions regarding which topic(s) should be moved on to next.

It is 1 of a set of 5 PowerPoint Presentations on ‘Collecting Data’ that APT Initiatives has published for GCSE Statistics. The full set of set of 5 PowerPoints (110 slides excluding Title Pages) covers the following topics relating to ‘Collecting Data’:

01 Types of Data (24 slides): Explains the different types of data and how data can be classified according to who collected it.
02 Methods of Collecting Data (31 slides): Reviews the data handling cycle and explains the main methods of collecting data and how to avoid bias, as well as how to record and clean data.
03 Questionnaires and Surveys (30 slides): Explains the dos and don’ts when designing questionnaires or surveys, reviews grouping data, explains random response techniques and what to do with unexpected responses.
04 Sampling and Bias 1 (25 slides): Defines key statistical terms, outlines how to avoid bias, and explains the main methods of sampling.
05 Sampling and Bias 2 (Application) (20 slides): Reviews and applies different sampling techniques and explains the Petersen capture-recapture method.

This set of 5 PowerPoints are one of 4 sets of PowerPoints that APT Initiatives Ltd has published to support teachers and students of GCSE Statistics. Other sets concern:

Representing Data
Analysing Data
Probability

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