Which sampling method below is cluster? . Select one: O a. A sample of products is obtained by selecting every 100th item on the assembly line, O b. A car maker conducts a marketing study involving test drives performed by a sample of 10 men and 10 women in each of 4 different age brackets. . c.An auto parts suppliers obtains a sample of all items from each 12 different randomly selected retail stores. O d. Random number generated by a computer are used to select serial numbers of cars to be chosen for sample testing. Oe. A car maker conducts a marketing study by interviewing potential customers who request test drives at a local dealership. Clear my choice A student is to gather a set of discrete data by asking 50 fellow students a question of his choice. Which of the following is not an example of discrete data? Select one: O a. amount of loose change, since some people might not have any O b. number of movies attended last month, since memory might be faulty O c. shoe size, since it can be a non-integer value like 8% O d. number of dates last month, since people might not be honest O e. height, since it can be any value on a continuum