Texas Education Agency
Texas Gateway: Data, Sampling, and Variation in Data and Sampling
This learning module discusses quantitative and qualitative data, the use of two-way tables in marginal and conditional distributions, how to display data, variation in data and samples, and how to critically evaluate statistical...
Missouri State University
Missouri State University: Introductory Statistics: T Test: The T Distribution
This discussion of statistical t distributions is presented in notes with examples added as needed.
Missouri State University
Missouri State University: Introductory Statistics: Models of Distributions
The different types of distributions are discussed here - uniform, regular, negative exponential, triangular, and normal. The properties of probability distributions are also explained here in detail. A good starting point in the topic...
Missouri State University
Missouri State U.: Introductory Statistics: T Test: One and Two Tailed T Tests
One-tail and two-tail t-distribution tests are explained here in detail. When is one the preferred method? A good comparison is offered.
CK-12 Foundation
Ck 12: Statistics: Normal Distributions Advanced
[Free Registration/Login may be required to access all resource tools.] This concept introduces students to the standard normal probability distribution.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Exponential, Normal, and Beta Distributions
Students learn about exponential, normal, and beta distributions. The tutorial investigates the statistics concepts through class notes and examples. Review exercises and a normal probability calculator are included.
University of Cambridge
University of Cambridge: Maths and Sports: Who's the Best?
Can you use data from the 2008 Beijing Olympics medal tables to decide which country has the most naturally athletic population? This data-handling activity encourages mathematical investigation and discussion and is designed to be...
CK-12 Foundation
Ck 12: Statistics: Sampling Methods Grade 8
[Free Registration/Login may be required to access all resource tools.] Understanding survey data and methods of sampling.
Texas Education Agency
Texas Gateway: Evaluating Methods of Sampling From a Set of Data
Given a problem situation, the student will evaluate a method of sampling to determine the validity of an inference made from the set of data.
Sophia Learning
Sophia: Practical Applications of the Bell Shaped Curve
Explore the bell-shaped curve and how to calculate a z score. Additional links provided to further knowledge on outliers.
Khan Academy
Khan Academy: Constructing Probability Distributions
Given a context, create a probability distribution. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Statistics: Sampling Distributions
[Free Registration/Login may be required to access all resource tools.] This concept introduces the sampling distribution of the mean, inferring the population mean from samples and sampling error.
CK-12 Foundation
Ck 12: Probability: Multinomial Distributions
[Free Registration/Login may be required to access all resource tools.] Covers probability distributions where there are more than two outcomes for an experiment.
CK-12 Foundation
Ck 12: Probability: Exponential Distributions
[Free Registration/Login may be required to access all resource tools.] Covers exponential distributions. Presents examples using a graphing calculator as well as guided and independent practice questions.
Web Center for Social Research Methods
Research Methods Knowledge Base: Probability Sampling
This site from Cornell University contains great information on random or probability sampling. Definitely a site worth checking out on the subject.