Chapter 11.6, Problem 69E

To determine

To calculate: The number of ways to select the three favorite jokes out of given 6 jokes. The jokes are:

The given jokes in the book are:

1) “Outside of a dog, a book is man’s best friend. Inside of a dog, it’s too dark to read.”—Groucho Marx

2) “I recently bought a book of free verse. For $12.”—George Carlin

3) “If a word in the dictionary was misspelled, how would we know?”—Steven Wright

4) “Encyclopedia is a Latin term. It means ‘to paraphrase a term paper.’ ”—Greg Ray

5) “A bookstore is one of the only pieces of evidence we have that people are still thinking.”—Jerry Seinfeld

6) “I honestly believe there is absolutely nothing like going to bed with a good book. Or a friend who’s read one.” —Phyllis Diller