1. Give the sample space for each of the following experiments. (a) A die is rolled twice and the outcomes are recorded. (b) A die is rolled twice and the sum of the outcomes is recorded. (c) From a shipment of 500 iPods, 6 of which have a click wheel problem, a simple random sample of 30 ipods is taken and the number found to have the click wheel problem is recorded. (d) Fuses are inspected until the first defective fuse is found. The number of fuses inspected is recorded.

2. Sketch two Venn diagrams like the one in Figure 2-3. On the first shade the set (A ? B) ? (B ? A), and on the second shade the event (A ? B) ? (A ? B). Are they the same?

A BA B C