1.On one busy holiday weekend, a national airline has many requests for a standby flights at half of the usual one way air fare. however past experience has shown that these passengers have only about 1 in 5 chance of getting on the standby flight. when they fail to get on a flight as a standby, there only other choice is to fly first class on the next flight out. suppose that the usual one way air fare to a certain city is $285 and the cost of flying first class is $573. should a passenter who wishes to fly to this city opt to fly as a standby?

2. a machine is set to pump water into a pool at the rate of 10 gallons per minute. Upon inspection, it is learned that the machine actually pumps water at a rate described by the uniform distribution over the interval 8.5 to 12.5 gallons per minute. Find the probability that between 10.5 gallons and 11.5 gallons are pumped during a randomly selected minute

3. describe a uniform distribution?

4. the area under a standard normal density curve with mean of 0 and standard deviation of 1 in________?

5. what three values are equal in a normal distribution?

6. Suppose that prices of a certain model of new homes are normally distruted with a mean of $142000 and a standard deviation of $1100 find the persentage of buyers who paid more than $152400

7. an airline reports that it has been experiencing a 17% rate of noshow on advanced reservations. among 150 advanced reservations, find the probability that there will be fewer than 20 no shows.