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Estimation of Pi
This applet is designed to approximate the value of Pi. It accomplishes this purpose by firing random data points at a circle inscribed within a square. The probability of a data point landing within the circle is a ratio of the circle's area to the area of the square.




http://www.mste.uiuc.edu/activity/estpi/



Least Squares & Data Fitting
Allows the user to select points on a grid, select the degree of the polynomial, and provides the resulting regression equation.




http://www.mste.uiuc.edu/users/exner/java.f/leastsquares/



The CliffHanger
An applet explores the following problem: A long day hiking through the Grand Canyon has discombobulated this tourist. Unsure of which way he is randomly stumbling, 1/3 of his steps are towards the edge of the cliff, while 2/3 of his steps are towards safety. From where he stands, one step forward will send him tumbling down. What is the probability that he can escape unharmed?




http://www.mste.uiuc.edu/activity/cliff/



Linear Regression Applet
This applet allows a person to add up to 50 points onto its green viewing screen. After each point is added by clicking on the screen with the mouse, a red line will appear. This red line represents a line passing through (Average x, Average y) with a slope that can be altered by clicking the Left or Right buttons. The slope of this line may also be changed by dragging the mouse either right or...




http://www.mste.uiuc.edu/activity/regression/



Buffon's Needle: An Analysis and Simulation
Gives some background on the Buffon needle problem. Has a link to an applet that allows one to simulate dropping a needle1, 10, 100, or 1000 times. One also has control over the length of the needle.




http://www.mste.uiuc.edu/users/reese/buffon/buffon.html

