This activity stresses the importance of writing clear, unbiased survey questions. It explores the types of bias present in surveys and ways to reduce these biases. In addition, the activity covers some basics of...

This one page article, created by Statistics Canada, describes the meaning behind random sampling error. It points our the relationship of the random sampling error with the sample size, population size, variability of...

This material is a detailed exercise for students in introductory statistics. Students are asked to collect a random sample of data from a real estate website; conduct descriptive statistics (including confidence...

This page, created by Intuitor.com, discusses disadvantages of large datasets with regard to Simpson's Paradox. "When big data sets go bad" is the headline of this lesson and this creative line epitomizes the focus of...

This page, created by Statisical Literacy.com, contains a short article on Simpson'€™s Paradox with an example of how standardizing changes the results. It also contains links to other "real world" articles on...