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These sample problems below for Probability were generated by the MathScore.com engine.

Sample Problems For Probability

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Complexity=5

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

1.		Probability: Odds:
2.		Probability: Odds:

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Complexity=6

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

1.		Probability: Odds:
2.		Probability: Odds:

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Complexity=7

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

1.		Probability: Odds:
2.		Probability: Odds:

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Complexity=8

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

1.		Probability: Odds:
2.		Probability: Odds:

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Complexity=9

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

1.		Probability: Odds:
2.		Probability: Odds:

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Complexity=10

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

1.		Probability: Odds:
2.		Probability: Odds:

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Answers

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Complexity=5

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

#	Problem	Correct Answer	Your Answer
1		Probability: Odds:
Solution There are 2 pieces that are highlighted out of 4 pieces. Thus, the probability that a randomly chosen piece is highlighted is 1/2. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 2:2 which simplifies to 1:1.

#	Problem	Correct Answer	Your Answer
2		Probability: Odds:
Solution There is 1 piece that is highlighted out of 3 pieces. Thus, the probability that a randomly chosen piece is highlighted is 1/3. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 2:1.

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Complexity=6

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

#	Problem	Correct Answer	Your Answer
1		Probability: Odds:
Solution There are 4 pieces that are highlighted out of 6 pieces. Thus, the probability that a randomly chosen piece is highlighted is 2/3. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 2:4 which simplifies to 1:2.

#	Problem	Correct Answer	Your Answer
2		Probability: Odds:
Solution There is 1 piece that is highlighted out of 3 pieces. Thus, the probability that a randomly chosen piece is highlighted is 1/3. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 2:1.

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Complexity=7

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

#	Problem	Correct Answer	Your Answer
1		Probability: Odds:
Solution There are 2 pieces that are highlighted out of 3 pieces. Thus, the probability that a randomly chosen piece is highlighted is 2/3. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 1:2.

#	Problem	Correct Answer	Your Answer
2		Probability: Odds:
Solution There are 6 pieces that are highlighted out of 7 pieces. Thus, the probability that a randomly chosen piece is highlighted is 6/7. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 1:6.

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Complexity=8

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

#	Problem	Correct Answer	Your Answer
1		Probability: Odds:
Solution There is 1 piece that is highlighted out of 3 pieces. Thus, the probability that a randomly chosen piece is highlighted is 1/3. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 2:1.

#	Problem	Correct Answer	Your Answer
2		Probability: Odds:
Solution There are 2 pieces that are highlighted out of 5 pieces. Thus, the probability that a randomly chosen piece is highlighted is 2/5. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 3:2.

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Complexity=9

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

#	Problem	Correct Answer	Your Answer
1		Probability: Odds:
Solution There are 6 pieces that are highlighted out of 7 pieces. Thus, the probability that a randomly chosen piece is highlighted is 6/7. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 1:6.

#	Problem	Correct Answer	Your Answer
2		Probability: Odds:
Solution There are 2 pieces that are highlighted out of 4 pieces. Thus, the probability that a randomly chosen piece is highlighted is 1/2. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 2:2 which simplifies to 1:1.

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Complexity=10

Find the probability that a randomly selected piece of the shape will be highlighted and find the odds that a piece chosen will not be highlighted. Express probabilities as a simplified fraction and odds as a ratio of two numbers with no common factors other than 1 (i.e. "2:1").

#	Problem	Correct Answer	Your Answer
1		Probability: Odds:
Solution There are 6 pieces that are highlighted out of 10 pieces. Thus, the probability that a randomly chosen piece is highlighted is 3/5. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 4:6 which simplifies to 2:3.

#	Problem	Correct Answer	Your Answer
2		Probability: Odds:
Solution There are 6 pieces that are highlighted out of 10 pieces. Thus, the probability that a randomly chosen piece is highlighted is 3/5. Since odds is a ratio of the event happening to the event not happening, we can simply take a ratio of the number of pieces unhighlighted to the number of pieces highlighted. In this case that would be 4:6 which simplifies to 2:3.

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