poll reported that

63% of adults were satisfied with the job the major airlines were doing. Suppose 25

adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below.

a. Interpret the probability. Select the correct choice below and fill in the answer box within your choice

b. Find and interpret the probability that at least 20 of them are satisfied with the airline

2. Suppose that a recent poll found that 56% of adults believe that the overall state of moral values is poor. Complete parts (a) through (c).

(a) For 350 randomly selected adults, compute the mean and standard deviation of the random variable X, the number of adults who believe that the overall state of moral values is poor. What is the mean of X?

3. Suppose that the probability that a passenger will miss a flight is 0.0966.

Airlines do not like flights with empty seats, but it is also not desirable to have overbooked flights because passengers must be "bumped" from the flight. Suppose that an airplane has a seating capacity of 52 passengers.(a) If 54 tickets are sold, what is the probability that 53 or 54 passengers show up for the flight resulting in an overbooked flight?(b) Suppose that 58

tickets are sold. What is the probability that a passenger will have to be "bumped"?(c) For a plane with a seating capacity of

240 passengers, what is the largest number of tickets that can be sold to keep the probability of a passenger being "bumped" below 1%?