|Tool: Marble Mania!||
|Go to:||http://www.sciencenetlinks.com/.../marblemania.html (opens a new window)|
This is an interactive activity in which the randomness and probability of marbles being pulled out of a "bag" are calculated automatically and for trials up to 500. In short, students will be able to see how the experimental probability more accurately reflects the theoretical probability when larger numbers of trials are conducted (as compared to a few).
The Marble Mania screen has three main sections, one on the left side of the screen where students can choose the number of different colored marbles in the bag plus the number of marbles to draw and the number of trials to run. The right side of the screen has two sections. The top section graphically shows the number of times a certain color was picked (either as a bar or pie chart), while the bottom section depicts the frequency.
|Cost:||Does not require payment for use|
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|Math 7||Simulations, Experimental probability, Theoretical probability|