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University at Albany: Populations and Samples: The Principle of Generalization
This resource explains what generalization is in statistics, its advantages and disadvantages, and problems that can occur, e.g., sample or response bias. Includes detailed examples of sampling error and sample bias.
CK-12 Foundation
Ck 12: Statistics: Sampling Methods
[Free Registration/Login may be required to access all resource tools.] Decide how to choose a sampling of a population to produce reliable statistical results.
Hofstra University
Hofstra University: Review Exercises Random Variables..
Interactive review problems are offered to practice the concepts of random variables and statistics. Topics covered include, Bernoulli trials, normal and binomial distributions, Chebyshev's rule, and the like.
CK-12 Foundation
Ck 12: Biology: Science Experiments
[Free Registration/Login may be required to access all resource tools.] Introduction to scientific experiments.