Five applicants (Jim, Don, Mary, Sue, and Nancy) are available for two identical jobs. A supervisor selects two applicants to fill these jobs.
- Let A denote the set of selections containing at least one male. How many elements are in A?
- Let B denote the set of selections containing exactly one male. How many elements are in B?
- Write the set containing two females in terms of A and B.
- List the elements in A ̅, AB, $A\cup B$, and (AB) ̅.