1. In-Class Exercises: Interpretations of Probability
2-36. A part selected for testing is equally likely to have been produced on any one of six cutting tools.
(a) What is the sample space?
(b) What is the probability that the part is from tool 1?
(c) What is the probability that the part is from tool 3 or
tool 5?
(d) What is the probability that the part is not from tool 4?

2. 2-43. Suppose your vehicle is licensed in a state that issues license plates that consist of three digits (between 0 and 9) followed by three letters (between A and Z).
If a license number is selected randomly, what is the probability that yours is the one selected?

3. 2-44. A message can follow different paths through servers on a network. The sender’s message can go to one of five servers for the first step, each of them can send to five servers at the second step, each of which can send to four servers at the third step, and then the message goes to the recipients server.
(a) How many paths are possible?
(b) If all paths are equally likely, what is the probability that a message passes through the first of four servers at the third step?