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Home > A2C > Chapter 10 > Lesson 10.1.1 > Problem 10-19

10-19.
  1. One way to win in a game with two dice is to roll a sum of six before getting a sum of seven. (Anything else that happens ” sums of 2, 3, 4, 5, 8, 9, 10, 11, or 12 - are ignored.) Homework Help ✎

    1. How many ways are there to get a sum of six?

    2. How many ways are there to get seven?

    3. How many possible outcomes are important in this problem?

    4. What is the probability of getting a six before a seven?

5

6

Do the other sums have any effect on the probability of winning the game?

What fraction of the important outcomes are sums of six?