It is expected that students will implement and analyse sampling procedures, and draw appropriate inferences from the data collected.
Most data collection involves the use of samples rather than populations.
Understanding the uses, advantages, and disadvantages of sampling is critical to interpreting statistical information. Have students identify examples of biased or invalid samples on data reported in the media. Ask them to work in groups to analyse the data and determine what the sample population might have been. Discuss as a class. Give students a series of case studies involving survey information and have them critique the studies and support or reject conclusions in the case studies.