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La probabilité
Mathématiques
L'algèbre

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 Name _____________________________ Date ___________________
La probabilité
Ecris la probabilité.

1.  A number cube has 6 sides. The sides are numbered 1 to 6. If the cube is thrown once, what is the probability of rolling the number 1?
 ____ out of   6
2.  A number cube has 6 sides. The sides are numbered 1 to 6. If the cube is thrown once, what is the probability of rolling an odd number?
 3   out of ____
3.  A bag contains 9 yellow marbles, 13 blue marbles, 14 purple marbles, 15 red marbles, and 6 green marbles. What is the probability of pulling out a yellow or a green marble?
 15   out of ____
4.  If one letter is chosen at random from the word typical, what is the probability that the letter chosen is the letter "i"?
 ____ out of   7
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6.  If one letter is chosen at random from the word requirement, what is the probability that the letter chosen is the letter "t"?
 ____ out of   11
7.  If one letter is chosen at random from the word preference, what is the probability that the letter chosen is the letter "e"?
 4   out of ____
8.  A bag contains 2 blue marbles, 11 yellow marbles, 9 purple marbles, 4 green marbles, and 10 red marbles. What is the probability of pulling out a blue marble?
 2   out of ____
9.  A number cube has 6 sides. The sides have the numbers 2, 2, 8, 2, 9, and 2. If the cube is thrown once, what is the probability of rolling an even number?
 ____ out of   6
10.  If one letter is chosen at random from the word scholarship, what is the probability that the letter chosen is the letter "i"?
 1   out of ____
11.  If one letter is chosen at random from the word distresses, what is the probability that the letter chosen is the letter "e"?
 ____ out of   10
12.  A bag contains 19 red marbles, 11 green marbles, 14 blue marbles, 15 purple marbles, and 14 yellow marbles. What is the probability of pulling out a red or a purple marble?
 34   out of ____
13.  If one letter is chosen at random from the word semicolon, what is the probability that the letter chosen is the letter "o"?
 2   out of ____
14.  If one letter is chosen at random from the word magnify, what is the probability that the letter chosen is the letter "i"?
 1   out of ____

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