Simple and Compound Probability

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What is probability?

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Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Tags

CCSS.7.SP.C.5

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What is a simple probability?

Back

Simple probability refers to the likelihood of a single event occurring, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

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CCSS.7.SP.C.7B

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What is a compound probability?

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Compound probability refers to the likelihood of two or more events occurring together, which can be calculated using the addition or multiplication rules.

Tags

CCSS.HSS.CP.B.7

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What is the formula for calculating simple probability?

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The formula for simple probability is: P(A) = \frac{Number\ of\ favorable\ outcomes}{Total\ number\ of\ outcomes}.

Tags

CCSS.7.SP.C.7A

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What is the addition rule in probability?

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The addition rule states that the probability of the occurrence of at least one of two events is the sum of their individual probabilities minus the probability of their intersection.

Tags

CCSS.HSS.CP.B.7

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What is the multiplication rule in probability?

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The multiplication rule states that the probability of the occurrence of two independent events is the product of their individual probabilities.

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If a spinner has 3 equal sections labeled A, B, and C, what is the probability of landing on A?

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The probability of landing on A is P(A) = \frac{1}{3}.

Tags

CCSS.7.SP.C.7A

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If a die is rolled, what is the probability of rolling a 4?

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The probability of rolling a 4 is P(4) = \frac{1}{6}.

Tags

CCSS.7.SP.C.7A

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What is the probability of getting heads in a fair coin toss?

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The probability of getting heads is P(Heads) = \frac{1}{2}.

Tags

CCSS.7.SP.C.7A

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What is the probability of rolling an even number on a standard die?

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The probability of rolling an even number (2, 4, or 6) is P(Even) = \frac{3}{6} = \frac{1}{2}.

Tags

CCSS.7.SP.C.7B