. Grade 7, Illustrative icon

Rolling Twice

Illustrative MathematicsVaries

The purpose of this task is for students to compute the theoretical probability of a compound event. Teachers may wish to emphasize the distinction between theoretical and experimental probabilities for this problem. For students learning to distinguish between theoretical and experimental probability, it would be good to find an experimental probability either before or after students have calculated the theoretical probability. If this is the first time students have worked to compute the probability of a compound event, it is a good idea to run the experiment first to get a ball-park sense of the magnitude of the theoretical probability.

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