Rice University
Rice University: Cynthia Lanius: Mathematics of Cartography: Projections
Understanding map projections is an important map-reading skill. Features graphics and links to examples of many different projections and an activity on making a Mercator projection.
Rice University
Rice Univ.: Cynthia Lanius: Mathematics of Cartography: Mathematics Problems
Web-based cartography exercises based on the online "How far is it" distance caclulator.
Rice University
Rice University: Erythrocyte Membranes
Description of the microscopic membranes surrounding an erythrocyte or the red blood cell.
Rice University
Rice University: The Chi Squared Goodness of Fit Test
This discussion of the chi-squared goodness-of-fit test for statistical data also includes an example and a link to a critical values tables.
Rice University
Rice University: Cynthia Lanius: No Matter What Shape Your Fractions Are In
Four basic geometric shapes - the triangle, parallelogram, trapezoid, and hexagon - are examined to determine how many of one shape fits "inside" another. For instance, how many triangles are "in" a hexagon. Ten questions with solutions...
Rice University
Hyper Stat Online Statistics Textbook: Cumulative Distribution
This resoruce explains how to read a cumulative frequency distribution graph.
Rice University
Hyper Stat Online Statistics Textbook: Arithmetic Mean
This resource gives a definition of a mean and provides a formula for finding a statistical mean.
Rice University
Hyper Stat Online Statistics Textbook: Median
This resource gives a definition of a median and tells you how to compute it.
Rice University
Hyper Stat Online Statistics Textbook: Population
A definition of "population" as it refers to statistics.
Rice University
Hyper Stat Online Statistics Textbook: Summary of Measures of Central Tendency
Site discusses which method of central tendency is most appropriate for different purposes.
Rice University
Hyper Stat Online Statistics Textbook: Contingency Table
A brief explanation and example of what a statistical contingency table is.
Rice University
Hyper Stat Online Statistics Textbook: Statistics Vocabulary Glossary
The complete glossary statistical terms used in HyperStat Online.
Rice University
Hyper Stat Online Statistics Textbook: Chi Square Test of Independence
The introduction to the Chi Square Test of Independence. An example is provided with an explanation.
Rice University
Hyper Stat Online Statistics Textbook: Continuous and Discrete Variables
The basic definitions of continuous and discrete statistics variables are provided here.
Rice University
More Fun Fractions
In this site, pattern blocks are used to explore fractional relationships among shapes.
Rice University
Hyper Stat Online Statistics Textbook: Mode
This site, written by a statistics professor at Rice University, gives a definition of mode and discusses the advantages of using mode as a measure of central tendency.
Rice University
Hyper Stat Online Statistics Textbook: Biased Sample
This site provides a definition for what biased sampling is and gives an example of a situation in which biased sampling may occur.
Rice University
Rice University: Cynthia Lanius: Interpreting Graphs: The Hot Tub
The graph of the water level of a hot tub is presented and students are asked to tell the story of how the water level changes. Explanations of slope and functions accompany the problem.
Rice University
Hyper Stat Online Statistics Textbook: Computing the Chi Square Test
Using an example, the site walks the user through the steps needed to compute the Chi-Square Test of Independence. Links are provided along the way for relevant materials.
Rice University
Hyper Stat Online Statistics Textbook: Mutually Exclusive Events
This resources offers a brief, one paragraph description of mutually exclusive events and gives an example for further clarification.
Rice University
What Percentage of Your Class Is Right or Left Handed?
What percentage of the class is right or left-handed? Students will investigate this question using statistical processes of collecting the data, organizing it, graphing, and finally analyzing it. Follow-up questions are provided for the...
Rice University
A Mathematics Fantasy the Million $ Mission
An example of exponential growth dealing with the national debt.
Rice University
Rice University: The Hand Squeeze
Students will enjoy this data collection and class analysis experiment involving the time it takes for a hand squeeze to travel around a circle of people. From organizing the activity to collecting the data to making a table and graphing...
Rice University
Rice University: Cynthia Lanius: Visualizing an Infinite Series
This site explains the infinite series through visualization.