Flight. From the Australian Government’s report entitled Domestic airline on time performance 2013–14, we found that Regional Express (R) achieved the highest number of on-time departures for 2013-14 at 88.6%, followed by Virgin Australia (V), Jetstar

(J), Qantas (Q) and Tigerair (T).

a. List the 10 possible samples (without replacement) of size 3 that can be obtained from the population of five airlines. Use the parenthetical abbreviations in your list.

b. If a simple random sampling procedure is used to obtain a sample of three of these five airlines, what are the chances that it is (1) the first sample, (2) the second sample, (3) the tenth sample on your list in part (a)?

c. Describe three methods for obtaining a simple random sample of three of these five airlines.

d. Use one of the methods that you described in part

(c) to obtain a simple random sample of three of these five airlines.