This module aims to teach you about different sampling methods.

It covers

	Introduction - what is a sample?
	Random sampling
	Systematic sampling
	Cluster sampling
	Stratified sampling
	Quota sampling

You are advised to start by clicking on the Introduction button at the top of the page.

The interactive elements of this module use Microsoft Excel 97 and will not run unless this software (or a later version) is installed on your computer (or network).  Excel uses settings taken from the first worksheet opened in the session, so please ensure that you do not have Excel already running when you start to use any of our spreadsheets.