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Practice Examples |
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5. How many different 5-letter arrangements are there of the letters in the word
digit ? (Answer) |
| 6. If a
three digit number is formed from the digits
1,2,3,4,5,6, and 7, with
no repetitions, tell how many of these three digit numbers will have a number value between 100 and 500. (Answer) |
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7. If the letters in the word
TRIANGLE are rearranged at
random, find the probability that the first letter is an A. (Answer) |
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8. Two cards are drawn at
random from a standard deck of 52 cards, without replacement. What is the probability of drawing a 7 and a king in that order? (Answer) |
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9. Throughout history, many people have contributed to
the development
of mathematics. These mathematicians include Pythagoras, Euclid, Hypatia, Euler, Einstein, Agnesi, Fibonacci, and Pascal. What is the probability that a mathematician’s name selected at random from those listed will start with either the letter E or the letter A?
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