Dice Rolling Simulation

Click the Roll Dice button and record the sum of the dots. Do this for 20 times.
1.) What do you observe? [br]2.) Which sum occur most often? least often? Can you think of an explanation why this is so?[br]3.) Do the simulation for 30 times, 40 times, 50 times, or even 100 times. Is your observation still the same?[br]4.) Make a conjecture about your observation.[br][br]More than [url=http://mathandmultimedia.com/geogebra/][b]50 Step by Step GeoGebra Tutorials[/b][/url] at [url=http://mathandmultimedia.com/][b]Math and Multimedia[/b][/url]

Expected Value Spinner - Purple or Blue?

Watch the video here before going through this activity:[url]http://player.vimeo.com/video/32756849[/url] You now have a chance to investigate this idea in the sketch below. Suppose you are given a chance to play this game 100 times and pocket the winnings. Your job is to find the size of the purple region so that over 100 spins, you win the [b]same[/b] amount of money whether you pick purple or blue. Once you choose, you'll be able to investigate whether you were right or not. Play with this and see what you find.