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Home > GC > Chapter 5 > Lesson 5.1.1 > Problem 5-9

5-9.

Earl hates to take out the garbage and to wash the dishes, so he decided to make a deal with his parents: He will flip a coin once for each chore and will perform the chore if the coin lands on heads. What he doesn’t know is that his parents are going to use a weighted coin that lands on heads % of the time! Homework Help ✎

  1. What is the probability that Earl will have to do both chores?

    What is the probability of flipping two heads in a row?

  2. What is the probability that Earl will have to take out the garbage, but will not need to wash the dishes?

    Use a tree diagram or two-way table.