Shodor Education Foundation
Shodor Interactivate: Normal Distribution
Change the standard deviation of an automatically generated normal distribution to create a new histogram. Observe how well the histogram fits the curve, and how areas under the curve correspond to the number of trials.
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.
University of Colorado
University of Colorado: Normal Probabilities Applet #1
This Applet will assist the user in questions which specify a range of raw scores or z-scores and ask for a probability associated with them.
University of Glasgow
Steps Statistics Glossary: Random Variable
Describes random variable and briefly mentions the two types of random variables: discrete and continuous.
University of Glasgow
Steps Statistics Glossary: Discrete Random Variable
An overview of the term "discrete random variable." The site continues with the definition "continuous random variable" so that the user may compare the two.
University of Glasgow
University of Glasgow: Continuous Random Variable
An overview of the term "continuous random variable." The definition follows immediately after "discrete random variable" so that the user may compare the two.
California State University
Cal State San Bernardino: Intro to Probability Models
The concept of random variables comes to life with this Applet used to roll one, two, six, or nine dice. The user selects the number of rolls to be completed, and the program quickly counts and graphs the results.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Histogram and Probability Distribution Generator
The learning tool displays data in the form of a histogram. The tool also shows descriptive statistics and probability distributions. Examples of data are included.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Binomial Distribution Utility
The learning tool calculates the probability of a binomial distribution.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Normal Distribution Utility
The learning tool calculates the probability of a normal distribution.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Normal Distribution Table
The resource consists of a normal distribution table.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Frequency Distributions
Find a quick, concise explanation of frequency distributions. An example is given and clearly explained.
Interactive Mathematics
Interactive Mathematics: The Normal Distribution
Formulas and properties of the normal distribution are presented, including details on the normal random variable and the standard normal distribution. Several real world examples are also included with detailed solutions.
Interactive Mathematics
Interactive Mathematics: Poisson Distribution
Enter the world of Poisson Distributions. A brief background is given on the properties and applications of the concept. Examples are presented for calculating probabilities, mean and variance for situations that fit the conditions of...
Interactive Mathematics
Interactive Mathematics: Probability Distribution
The concept of random variables is the focus of this lesson, including definitions of discrete and continuous random variables. Discussions on discrete probability distribution and density function are included, along with expected value...
Science Struck
Science Struck: Types of Skewed Distribution With Real Life Examples
Explains what is meant by a skewed distribution, describes the two types, and gives examples.
Interactive Mathematics
Interactive Mathematics: Binomial Distribution
The definition and properties of binomial distributions are presented here, along with the formulas for finding the mean and variance. Examples are provided to demonstrate how binomial distribution problems are solved.
University of Glasgow
Steps Statistics Glossary: Sampling Distribution
This site provides an overview of sampling distribution and associated terms.
University of Glasgow
Steps Statistics Glossary: Random Variables and Probability Distributions
This section of the Statistics Glossary offers definitions of terms having to do with random variables and probability distributions such as expected value and normal distribution.
University of Glasgow
Steps Statistics Glossary: Normal Distribution
Overview of normal distribution, including the normal distribution model, the probability density function, and standard normal distribution. The parameters for "normal" distribution are provided.
Other
Berrie's Statistics Page: Normal Distribution
Site discusses the normal distribution as well as the mean and variance in the normal distribution. A link is provided for a QuickTime activity to adjust the mean.