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Rice University: Cynthia Lanius: Mathematics of Cartography: Coordinate System
A coordinate system such as latitude/longitude is an example of absolute location. Links to Greenwich/Prime Meridian.
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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.
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Rice Univ.: Cynthia Lanius: Mathematics of Cartography: Mathematics Problems
Web-based cartography exercises based on the online "How far is it" distance caclulator.
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Rice University: Erythrocyte Membranes
Description of the microscopic membranes surrounding an erythrocyte or the red blood cell.
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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.
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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...
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Hyper Stat Online Statistics Textbook: Cumulative Distribution
This resoruce explains how to read a cumulative frequency distribution graph.
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Hyper Stat Online Statistics Textbook: Arithmetic Mean
This resource gives a definition of a mean and provides a formula for finding a statistical mean.
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Hyper Stat Online Statistics Textbook: Median
This resource gives a definition of a median and tells you how to compute it.
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Hyper Stat Online Statistics Textbook: Population
A definition of "population" as it refers to statistics.
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Hyper Stat Online Statistics Textbook: Summary of Measures of Central Tendency
Site discusses which method of central tendency is most appropriate for different purposes.
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Hyper Stat Online Statistics Textbook: Contingency Table
A brief explanation and example of what a statistical contingency table is.
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Hyper Stat Online Statistics Textbook: Statistics Vocabulary Glossary
The complete glossary statistical terms used in HyperStat Online.
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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.
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Hyper Stat Online Statistics Textbook: Continuous and Discrete Variables
The basic definitions of continuous and discrete statistics variables are provided here.
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More Fun Fractions
In this site, pattern blocks are used to explore fractional relationships among shapes.
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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.
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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.
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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.
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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.
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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.
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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...
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A Mathematics Fantasy the Million $ Mission
An example of exponential growth dealing with the national debt.
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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...