Question

1. Dr. Gruner brings his old pocket watch to be repaired. The gears stopped and will not turn. What is the probability that the hour hand is between the 2 and the 5?

2. A basketball player makes baskets from the foul line 89% of the time. If she makes 9 attempts, what is the probability she will miss no more than twice?

3. Historically, the number of hurricanes hitting Boca Raton each year follows a Poisson distribution with a mean of 1. What is the probability that 4 or more hurricanes hit the town in a year?

4. For $14 you can may play a game of chance: Draw a random number from 1 to 6 from a hat. You square the number you draw and you win that much cash. What is the expected (net) profit of such a game (take into account the cost to play)?

Answer 1