Pre-Algebra Worksheet
Probability and Odds
Marbles and Number Cubes (Dice)
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Probability and Odds (Number Cube and Marbles) |
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This worksheet contains problems on finding the probability and odds of problems involving different colored marbles in jars and of number cubes (or dice).
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Sample Problems from Worksheet (diagrams not shown) |
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2. You roll a number cube numbered from 1 to 6.
P(not a 1)
Express the probability as a fraction.
What are the odds in favor of not rolling a 1?
3. A jar contains 11 black, 24 red,
25 orange, and 10 pink marbles. A marble is
drawn at random.
P(orange or black)
Express the probability as a decimal. Round to the nearest hundredth.
What are the odds in favor of choosing an orange or black marble?
8. A jar contains 24 black and 6 purple marbles. A marble is drawn at random. P(black)
Express the probability as a percent.Round to the nearest percent.
12. You roll a number cube numbered from 1 to 6.
P(2 or 4)
Express the probability as a percent. Round to the nearest percent.
What are the odds in favor of rolling a 2 or 4?
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