4, Lesson 7, Unit 5, Grade 7, EngageNY icon
Instructional Activity

Example 2: Three Nights of Games (with Probabilities)

Lesson 7. Unit 5. Grade 7 EngageNY

EngageNY5 min(s)

This Instructional Activity is a part of the Lesson 7, Unit 5, Grade 7. Read through the example with students, and explain how to calculate the probabilities for the outcomes BBB and CBC as shown on the tree diagram. In Example 1, each night's outcome is the result of a chance experiment (rolling the four-sided die). Thus, there is a probability associated with each night's outcome. By multiplying the probabilities of the outcomes from each stage, you can obtain the probability for each "branch of the tree." In this case, you can figure out the probability of each of our eight outcomes.

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