Monty Hall Help

How Do I Use This Activity?

This activity allows the user to simulate the Monty Hall Game with up to 100 doors in which the user chooses a door, and then all but one door is opened to reveal a stinking pig. The player must then decide to stick with the original choice or change.

This Java applet requires a Java-capable browser. If you don't see the applet Java may not be functional in your browser or on your machine.

Controls and Output

  • To select the number of doors, type the desired number in the Number of Doors = [___] space. Here the number of doors is 3:

  • To select the number of games simulated, type the desired number in the Number of Trials = [___] space. Here the number of trials is 1000:

  • To select whether the player switches the doors or stays with the original choice, click on the selection sign: next to the Stay menu. Then click on Stay or Switch. Here Stay is selected:

  • To run the simulation, click on the Run Simulation button:

  • Observe the total number of prizes the player obtained in all the games in The number of prizes: [___] space. Here the number of prizes is 316:





Please direct questions and comments about this project to Interactivate@shodor.org
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