Radford University
Data Analysis Activity
What do classmates think? In groups, learners design surveys to investigate chosen topics. They conduct the survey, then analyze the results. As part of the activity, they must calculate the mean, median, mode, variance, and standard...
Radford University
Box-and-Whisker Activity
Think inside the box. Working in small groups, pupils design a study to answer comparing two data sets. Team members collect data and construct box-and-whisker plots and analyze them to prove or disprove their hypothesis. They develop...
Radford University
The Normal Distribution Activity
For whom does the bell fit? Pupils begin by working in groups gather data on three different variables. They then determine the mean and standard deviation of each data set and create bell curves. To finish, they answer guiding questions...
College Board
Three Calculator Simulation Activities
Calculators sure come in handy. An AP® Statistics instructional resource provides suggestions for using calculator simulations. It gives activities for adding variances, normal probability plots, and t distributions.
College Board
Why Variances Add - And Why It Matters
Why is adding variance important? A lesson outline defines a variance theorem and how it affects the data statistics. The instruction shows scholars the importance of considering the variance of data and why it requires independence.
Wolfram Research
Wolfram Math World: Standard Deviation
This World of Mathematics site by Eric Weisstein explains the term "Standard deviation." Provides step-by-step help, examples, and charts.
Other
Descriptive Statistics
Very complete explanation of mean, standard deviation, etc. including an online calcluator for these statistics.
Missouri State University
Missouri State University: Introductory Statistics: Statistics
This is an excellent resource on what the science of statistics involves. There are all kinds of definitions, examples, graphs, and charts to learn from. The topics covered include: mode, mean, median, skewed distributions and measures...
Missouri State University
Missouri State University: Introductory Statistics: The Normal Curve
Provides lengthy explanations of the measures of central tendencies - mean, mode, and median - and the measures of variability - range, variance, standard deviation - are given here. Graphs of interesting "side items" are presented as...
Missouri State University
Missouri State U.: Statistics: Measures of Central Tendency and Variability
Provides lengthy explanations of the measures of central tendency - mean, mode, and median - and the measures of variability - range, variance, standard deviation. Graphs of interesting examples are presented as well, skewed...
Calculator Soup
Calculator Soup: Descriptive Statistics Calculator
This is a statistics calculator; enter a data set and hit calculate. Descriptive statistics summarize certain aspects of a data set or a population using numeric calculations. Examples of descriptive statistics include: mean, average,...
City University of New York
Measures of Variability
Explanation and examples of variance and standard deviation. Helpful charts and formulas are provided.
Wolfram Research
Wolfram Math World: Variance
MathWorld offers a plethora of information on variance. Student should have some statistic knowledge to use this site. This site contains links to related topics.
Texas Instruments
Texas Instruments: How Close Is Close?
In this activity, students compute statistical measures like the mean, standard deviation, and variance of the data set. They understand how measures of variability can be interpreted.
Texas Instruments
Texas Instruments: Analyzing Variance (Anova)
Students analyze variances of various data samples.
Texas Instruments
Texas Instruments: One Way Analysis of Variance
This set contains questions about statistics regarding the one-way analysis of variance (ANOVA). The student learns to develop hypotheses, find the test statistic, and reach a conclusion in the context of the original problem.
Texas Instruments
Texas Instruments: Means & Variances of Random Variables
This set contains statistics questions regarding means and variances of random variables. The student calculates sums and differences of random variables based on their means and variances.
Science Education Resource Center at Carleton College
Serc: Nitrate Levels in the Rock Creek Park Watershed: Variability
Learning module focuses on measures of variability such as range, variance, and standard deviation which are used to examine nitrate levels and water quality.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Variance and Standard Deviation of a Set of Scores
Students learn about the variance and standard deviation of a set of scores. Topics explored are the empirical rule and Chebyshev's rule. The tutorial investigates the statistics concepts through class notes and examples. Review...
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Variance and Standard Deviation of a Random Variable
Students learn about the variance and standard deviation of a random variable. The tutorial investigates the statistics concepts through class notes and examples. Review exercises and a chapter quiz are included.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Mean, Median & Standard Deviation
Students learn about mean, median, variance, and standard deviation. The tutorial investigates the statistics concepts though class notes and examples. Review exercises are included.
Oswego City School District
Regents Exam Prep Center: Statistical Studies, Central Tendency, and Dispersion
The mathematics tutorial investigates statistical studies, central tendency, and dispersion. The lesson consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes an activity...
Other
Online Statistics Education: Measures of Variability
Learning Objectives cover the areas of the Measures of Variability. Explanations are given for: variability, range, interquartile range, variance, and standard deviation. Examples and quizzes are also provided.
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.