Dice Rolling Simulation

1.) Roll the dice 20 times by clicking the command button and record the sums. What do you observe?
2.) Roll the dice 30 times more. Is your observation still the same?
3.) Which of the sums has the most number? has the least number?
4.) Explain why this is so.

This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com

I have written about dice rolling,  and experimental and theoretical probablity in Math and Multimedia.

Download GGB File

Random segments on a grid

Problem: Suppose the endpoints of a line segment are determined by the uniform random selection of two points on a 12 x 12 grid in a square. Now repeat this to randomly determine a second line segment. What is the probability that these two segments cross, i.e. have a point in common?

To Simulate: Move the slider to select speed.

This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com

Download GGB file at GeoGebra Tube.
More than 50 GeoGebra tutorials at Math and Multimedia