"Alway ask if you dont understand but asking too much is annoying.."

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PERMUTATIONS AND COMBINATIONS WORKSHEET CTQR 150 1. If the NCAA has applications from 6 universities for hosting its intercollegiate tennis championships in 2008 and 2009, how many ways may they select the hosts for these championships a) if they are not both to be held at the same university? b) if they may both be held at the same university? 2. There are ﬁve ﬁnalists in the Mr. Rock Hill pageant. In how many ways may the judges choose a winner and a ﬁrst runner-up? 3. In a primary election, there are four candidates for mayor, ﬁve candidates for city treasurer, and two candidates for county attorney. In how many ways may voters mark their ballots a) if they vote in all three of the races? b) if they exercise their right not to vote in any or all of the races? 4. A multiple-choice test consists of 15 questions, each permitting a choice of 5 alternatives. In how many ways may a student ﬁll in the answers if they answer each question? 5. A television director is scheduling a certain sponsor’s commercials for an upcoming broadcast. There are six slots available for commercials. In how many ways may the director schedule the commercials a) If the sponsor has six different commercials, each to be shown once? b) If the sponsor has three different commercials, each to be shown twice? c) If the sponsor has two different commercials, each to be shown three times? d) If the sponsor has three different commercials, the ﬁrst of which is to be shown three times, the second two times, and the third once? 6. In how many ways may can ﬁve persons line up to get on a bus? 7. In how many ways may these same people line up if two of the people refuse to stand next to each other? 8. In how many ways may 8 people form a circle for a folk dance? 9. How many permutations are there of the letters in the word “great”? 10. How many permutations are there of the letters in the word “greet”? 11. How many distinct permutations are there of the word “statistics”? 12. How many distinct...

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