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Home > CCG > Chapter 5 > Lesson 5.1.2 > Problem 5-20

5-20.

spinnerThe spinner at right has three regions: A, B, and C. To play the game, you must spin it twice. If the game were played times, how many times would you expect to get A on both spins? Use a tree diagram or area model to help you answer the question. Homework Help ✎

 

 

What is P(A) for one spin?
Remember how many degrees are in a circle.

Are the spins independent of each other? That means the first spin has no effect on the outcome of the second spin.

What is the probability of spinning an A on the first spin? Multiply by the probability of spinning an A on the second spin.

Multiply the P(A and A), by to find how many times you would expect to get A on both spins during the trials.

 times