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Technology 
Type 
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The Birthday Problem

Probability (Probability & Statistics) 
Java Applet 
Tool 

[0]

How likely is it that two people in your class have the same birthday? Choose the number of students in a class, and have the applet generate birthdays for them. Run a number of trials, and look at th...
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The Birthday Problem

Simulating Experiments (Probability & Statistics) 
Java Applet 
Tool 

[1]

Simulation of the probability of a group of size n having all different birthdays.
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The Centroid and the Regressio...

Correlation (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the properties of the centroid and the regression line.
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The CliffHanger Simulation

Probability Models (Probability & Statistics) 
Java Applet 
Tool 

[0]

This applet is designed to accompany the CliffHanger Applet. With this applet, you are able to simulate running the CliffHanger Applet one hundred, ten thousand, or one million times. It is designed...
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The Effects of Outliers

Correlation & Regression (Probability & Statistics) 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the effects of outliers on data sets.
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The Regression Line

Correlation & Regression (Probability & Statistics) 
Java Applet 
Tool 

[0]

Sudents investigate the relationship between a set of data points and a curve used to fit the data points.
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Traffic Light

Simulating Experiments (Probability & Statistics) 
Java Applet 
Tool 

[0]

Simulates a car driving down a street with random traffic lights; user sets number of lights. Number of stops per trip is recorded.
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Traffic Light Applet

Simulating Experiments (Probability & Statistics)+ 
Java Applet 
Tool 

[1]

Experiment with probabilities of stopping under various conditions: number of traffic lights, slow or fast speed.
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Triangle Experiment

Simulating Experiments (Probability & Statistics)+ 
Java Applet 
Tool 

[1]

Simulates the probability that a stick broken into three pieces at random forms a triangle. Fairly sophisticated display (and discussion). Requires a MathPlayer plugin (free).
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Two Colors Applet

Probability (Probability & Statistics) 
Java Applet 
Tool 

[0]

Students choose between three boxes and choose one marble from the box to look at conditional probabilities.
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Type 1 and Type 2 Errors

Tests of Significance (Probability & Statistics)+ 
Java Applet 
Tool 

[1]

This applet demonstrates Type I and Type II errors, as well as the power of the test, in onesided hypothesis testing.
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Type 1 and Type 2 Errors

Inference (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

This explanation of Type 1 and Type 2 errors in hypothesis testing uses a criminal justice context; a builtin applet illustrates the relationship among significance level, power of the test, and prob...
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Understanding the Least Square...

Scatterplots (Probability & Statistics)+ 
Java Applet 
Tool 

[2]

This tool allows users to explore three methods for measuring how well a linear model fits a set of data points.
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Webbased Interactive Tools an...

General (Probability & Statistics) 
Java Applet 
Tool 

[0]

This resource contains a collection of graphs, plots and statistical charts freely available over the Internet.
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Webdice

Probability Models (Probability & Statistics) 
Java Applet 
Tool 

[0]

Simulates the rolling of a dice. The number of dice and the number of sides can be set by the user.
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Coin Toss  3 coins

Probability (Probability & Statistics) 
JavaScript 
Tool 

[0]

A variant on hmnwilson's Coin Flip tool, this features three coins at once.
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Combinations

General (Probability & Statistics) 
JavaScript 
Tool 

[0]

Determine the number of possible combinations of sets of items. This application is also linked to Factorials and Permutations.
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Create a Graph

Displaying with Graphs (Probability & Statistics) 
JavaScript 
Tool 

[3]

From the NCES Students' Classroom: fill in the data, and this tool will create a graph (bar, line, area, pie, or xy). Includes sample data.
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Descriptive Statistics

General (Probability & Statistics) 
JavaScript 
Tool 

[0]

A JavaScript applet that computes expected value, variance, standard deviation, skewness, kurtosis, and coefficient of variation for datasets. You may enter 4 to 80 decimal or integer values for your ...
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Factorials

General (Probability & Statistics) 
JavaScript 
Tool 

[0]

The Factorial Function: An explanation and solver. A Factorial function is used to multiply a series of natural numbers. This application is also linked to Combinations and Permutations.
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FooPlot  Online graphing calc...

General (Probability & Statistics) 
JavaScript 
Tool 

[2]

This tool lets you plot functions, polar plots, and 3D with just a suitable web browser (within the IE, FireFox, or Opera web browsers), and find the roots and intersections of graphs. In addition, yo...
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Function Graphs Drawing Progra...

General (Probability & Statistics) 
JavaScript 
Tool 

[1]

Online program to draw function graphs, their dreivative or their integral.
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Graph of the US Income Distrib...

Displaying with Graphs (Probability & Statistics)+ 
JavaScript 
Tool 

[2]

Interact with a graph displaying family income across the population using a football field as the context. The height of the curve at any point is the height of a stack of $100 bills equaling that in...
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Integer Generator

Randomness (Probability & Statistics) 
JavaScript 
Tool 

[0]

This form allows you to generate random integers. The randomness comes from atmospheric noise, which for many purposes is better than the pseudorandom number algorithms typically used in computer pro...
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Permutations

General (Probability & Statistics) 
JavaScript 
Tool 

[0]

This script calculates the number of ordered groupings of a set, or permutations, for the amounts you enter as the number of possible choices and numbers chosen.
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