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View Resource Fuzzy Set Ordination Web Page

Commonly used by plant community ecologists, Fuzzy Set Ordination (FSO) is a technique for "find[ing] associations between site factors and species distributions." Richard Boyce, Assistant Professor of Biological Sciences at the University of Denver in Colorado, has put together this Website on Fuzzy Set Ordination. The site offers background descriptions of FSO as well as a dozen suggested key...

View Resource Elementary Algebra

Presented by HippoCampus, a project of the Monterey Institute for Technology and Education, this free online course "is a study of the basic skills and concepts of elementary algebra, including language and operations on sets, operations on signed numbers, simple linear equations and inequalities in one variable, operations on polynomials (including beginning techniques of factoring), integer...

View Resource Venn Diagram Applet

In this applet, A and B are subsets of a universal set S. The list is given of the 16 different subsets of S that can be constructed from A and B using the basic set operations of union, intersection, and complement. The selected subset is colored red in the Venn diagram on the right.

View Resource Simpson's Paradox

This page, created by Intuitor.com, discusses disadvantages of large datasets with regard to Simpson's Paradox. "When big data sets go bad" is the headline of this lesson and this creative line epitomizes the focus of this lesson. The site offers four different tables for exploration. This allows students to see how different size data sets react to the concept of the paradox. Even though brief,...

View Resource Set Theory and Foundations

About 90 "informal notes" by Kevin Brown on set theory and foundations: what is fuzzy logic, fractal logic, Cantor's diagonal proof, are all triangles isosceles, on Gauss's mountains, problems with the luminiferous aether, and many more.

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