Change the number of sectors and increase or decrease their size to create any type of spinner. Then, conduct a probability experiment by spinning the spinner many times. How does the experimental probability compare with the theoretical probability?
This interactive is optimized for your desktop and tablet.
To run an experiment, enter a number in the "Number of spins" box. Then click Spin. The experimental and theoretical probabilities will be shown in the table. Hit the Spin button repeatedly to get more trials, or hit Skip to End, after hitting the spin button once, if you would like for all the spins to generate.
To start over, click Reset.
Create a spinner of your choosing. Add or delete sectors, change their sizes and colors, go wild.
Make sure the Number of Spins is 1, and click the Spin button.
Change the Number of Spins to 100, and click the Spin button.
Increase the Number of Spins to a very large number (the maximum allowed is 99,999).
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