Curated OER
Sampling Bias And the California Recall
Using a 2002 California Gray David recall vote as an example, young statisticians identify sources of bias in samples and find ways of reducing and eliminating sampling bias. They consider ways to select random samples from a...
CK-12 Foundation
Ck 12: Statistics: Sampling and Bias
[Free Registration/Login may be required to access all resource tools.] Understanding bias in surveys and samples.