Basic Probability

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What is probability?

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Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

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CCSS.7.SP.C.5

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What is the formula for calculating the probability of an event?

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The probability of an event is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

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CCSS.7.SP.C.7A

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What does it mean if an event is 'impossible'?

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An impossible event has a probability of 0, meaning it cannot occur.

Tags

CCSS.7.SP.C.5

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What does it mean if an event is 'unlikely'?

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An unlikely event has a probability less than 0.5, indicating that it is not expected to happen.

Tags

CCSS.7.SP.C.5

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What is the probability of landing on a specific section of a spinner divided into equal parts?

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The probability is calculated as the number of favorable sections divided by the total number of sections.

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CCSS.7.SP.C.7A

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How do you calculate the probability of rolling an odd number on a standard six-sided die?

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There are three odd numbers (1, 3, 5) on a die, so the probability is 3/6 or 1/2.

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CCSS.7.SP.C.7B

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What is the probability of rolling a specific number with two dice?

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The probability of rolling a specific number with two dice is calculated by determining the number of combinations that result in that number divided by the total possible outcomes (36).

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How do you find the probability of drawing a specific color of marble from a jar?

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The probability is found by dividing the number of marbles of that color by the total number of marbles in the jar.

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CCSS.7.SP.C.7B

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What is the probability of an event that is 'certain'?

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A certain event has a probability of 1, meaning it will definitely occur.

Tags

CCSS.7.SP.C.5

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What is the difference between theoretical and experimental probability?

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Theoretical probability is based on the expected outcomes, while experimental probability is based on actual experiments and observed outcomes.