Suppose that in a certain region of California, earthquakesoccur at the average rate of 7 per year.
(a) What is the probability that in exactly three of the nexteight years, no earthquakes occur?
(b) What is the **expect**ed number of years to wait until wehave a year with exactly 7 earthquakes?
(c) In the next century, how many years would you **expect** tosee with more than 10 earthquakes?
Hint: When you see the word \"expect\" you should expect to usethe expected value!
