Experimental vs. Theoretical Probability: The Crazy Choices Game
Experimental vs. Theoretical Probability: The Crazy Choices Game
Grade Levels
Course, Subject
Virtual Manipulative
Description
Experimental probability is defined as the chances of something happening, based on repeated testing and observing results. It is the ratio of the number of times an event occurred to the number of times tested. For example, to find the experimental probability of winning a game, one must play the game many times, then divide the number of games won by the total number of games played.
Theoretical probability is defined as the chances of events happening as determined by calculating results that would occur under ideal circumstances. For example, the theoretical probability of rolling a 4 on a four-sided die is 1/4 or 25%, because there is one chance in four to roll a 4, and under ideal circumstances one out of every four rolls would be a 4.
Specifically, this activity can be used to:
- introduce the concepts of chance and probability
- illustrate the difference between experimental and theoretical probability
- introduce the concept of random numbers
Students can use the Exploration Questions and the Tally Table to guide their investigations.
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