A college library has five copies of a certain text on reserve. Two copies (1 and 2) are first printings, and the other three (3, 4, and 5) are second printings. A student examines these books in random order, stopping only when a second printing has been selected. One possible outcome is 5, and another is 213. a. ? ist the outcomes in . b. ?Let ?A ?denote the event that exactly one book must be examined. What outcomes are in A ? ?? c. ?Let ?B ?be the event that book 5 is the one selected. What outcomes are in ?B?? d. ?Let ?C ?be the event that book 1 is not examined. What outcomes are in ?C??

Answer: Step1: It's an enumerative study. It's actually easier to think of this problem by describing what it is not (i.e. which of the two options it is least like); here, we deduce that it's not an analytic study because an analytic study. Enumerative study: A statistical study is identifiable i.e, not ambiguous, and the elements of the population are well defined...