A survey of 1,000 apartment dwellers asks the queson: 'Hov.I manvr bedrooms are in your apartment?'. For a randomly:r chosen respondent, let A denote the event that the respondent's apartment has 2 or more bedrooms, and B denote the event that the respondent's apartment has 2 or less bedrooms. Events A and B are V but not V . collectively exhaustive ............................................................. mutually exclusive