Problem 7BSC
Determining Whether Events Are Disjoint. For Exercise, determine whether the two events are disjoint for a single trial. (Hint: Consider “disjoint” to be equivalent to “separate” or “not overlapping.”)
Randomly selecting a survey respondent and getting someone who believes in UFOs.
Randomly selecting a survey respondent and getting someone who believes in the devil.
Solution 7BSC
A person can believe in UFO’s and in the devil both. So events ‘Randomly selecting a survey respondent and getting someone who believes in UFO’s.’ and ‘Randomly selecting a survey respondent and getting someone who believes in the devil.’ can occur simultaneously. Hence events are not disjoint.