**Use the following information to answer questions**

*Suppose the machine that seals the cereal boxes operates for an average of 13 days before it breaks down. Assume the machine has just been serviced and is in good running order.*

**A:**What is the probability that the machine works for 13 days before it breaks down?

**B:**What is the probability that the machine works between 5 to 15 days before it breaks down?

**C:**What is the probability that the machine will operate longer than 20 days?