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  • Shannon's Experiment to Calculate the Entropy of English

    The following applet allows you to simulate the Shannon experiment, an experiment aimed at determining the entropy of an English letter (the amount of information in bits that we obtain on the average when we learn one letter of English). The simulation will calculate the amount of entropy for you when you are finished guessing the letters.

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  • Breaking The Vigenere Encryption System

    This applet is programmed to illustrate the code-breaking process using the Vigenere encryption as the code. The Vigenere encryption is broken by comparing histograms of various frequencies until the correct guess is obtained. A wrong guess for the period p leads to relatively flat histograms. The code breaker in this case repeats the analysis with a new trial period.

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  • Breaking The Rectangular Transposition Encryption System

    This applet illustrates the codebreaking process entitled Rectangular Transposition Encryption System.

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  • Breaking A Monoalphabetic Encryption System Using a Known Plaintext Attack

    This applet illustrates the codebreaking process using a chi-squared process.

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  • International Statistical Institute Glossary of Statistical Terms

    This site shows the ISI's alphabetical list of technical terms in statistics showing the translation in a number of languages.

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  • Stem and Leaf Plot

    This site gives a definition and an example of stem and leaf plots.

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  • Histogram

    This site gives a definition and an example of histograms.

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  • Statistics Canada

    The function of this site is to collect, compile, analyse, abstract and publish statistical information relating to the commercial, industrial, financial, social, economic and general activities and condition of the people.

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  • Statistical Engineering

    A good resource for problems in statistics in engineering. Contains some applets, and good textual examples related to engineering. Some topics include Monte Carlo method, Central Limit Theorem, Risk, Logistic Regression, Generalized Linear .Models, and Confidence.

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  • The Normal Distribution and Density

    The user is be able to change the mean and the standard deviation using the sliders and see the density change graphically. The check buttons (68, 95, 99) will help one realize the appropriate percentages of the area under the curve. An example of thiis "68-95-99.7" rule follows.

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