9, Lesson 5, Unit 5, Grade 7, EngageNY icon
Problem Set

Problem Set

Lesson 5. Unit 5. Grade 7 EngageNY

EngageNYVaries

This Problem Set is a part of the Lesson 5, Unit 5, Grade 7. Students calculate probabilities for chance experiments that do not have equally likely outcomes. It is important that this lesson addresses the common student misconception that outcomes are always equally likely. A weighted die is another example that can be used to show a situation where the six possible outcomes would not be equally likely to occur, and so it is not reasonable to think that each of the six outcomes has a probability of This straightforward example lets students experience probabilities given in a table, outcomes with unequal probabilities, adding probabilities, and finding the probability of a complement (i.e., the probability that an event does not happen).

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