Quiz 3  Counting Techniques. 1. How many ID numbers can be made from a sequence of 2 letters followed by 3 numbers? a) 26 000 b) 52 000 c) 676 000 d)

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Presentation transcript:

Quiz 3  Counting Techniques

1. How many ID numbers can be made from a sequence of 2 letters followed by 3 numbers? a) b) c) d)

2. How many three-letter “words” can be made when the first and last letters are consonants and the middle letter is a vowel (a,e,i,o,u)? a) 676 b) 2205 c) 3380 d) 9261

3. Compute 6! (factorial). a) 720 b) 120 c) 36 d) 30

4. How many ways are there of arranging 3 different items? a) 6 b) 9 c) 12 d) 15

5. How many different ordered pairs of items can be selected from 12 different items? a) 66 b) 144 c) 132 d) 12

6. How many three-member committees can be selected from a group of 15 people? a) 3375 b) 1320 c) 1500 d) 455

7. How many five-letter words can be made from the letters in “hello”? a) 120 b) 60 c) 30 d) 25

8. How many pairs (any 2 cards) can be drawn from a deck of 52 cards? a) 2704 b) 1326 c) 2652 d) 663