Simple Probability

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What is Simple Probability?

Back

Simple Probability is the measure of the likelihood that a specific event will occur, expressed as a ratio of favorable outcomes to the total number of possible outcomes.

Tags

CCSS.7.SP.C.7A

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What is the formula for calculating probability?

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Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

Tags

CCSS.7.SP.C.7A

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What is an example of an impossible event in probability?

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Rolling a 15 with a pair of dice is impossible because the maximum sum of two dice is 12.

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CCSS.7.SP.C.5

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What is Experimental Probability?

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Experimental Probability is the probability based on the actual results of an experiment, calculated as the number of times an event occurs divided by the total number of trials.

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What is Theoretical Probability?

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Theoretical Probability is the probability based on the expected outcomes in a perfect scenario, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Tags

CCSS.7.SP.C.7A

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If a spinner has 12 equal sections, and 5 are red, what is the probability of spinning red?

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The probability of spinning red is 5/12.

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CCSS.7.SP.C.7B

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What is the probability of choosing a letter other than 'A' from the word 'ALGEBRA'?

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The probability of choosing a letter other than 'A' is 5/7.

Tags

CCSS.7.SP.C.7B

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What does it mean if an event is 'equally likely'?

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An event is 'equally likely' if it has the same chance of occurring as not occurring.

Tags

CCSS.7.SP.C.7A

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What is a sample space in probability?

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A sample space is the set of all possible outcomes of a probability experiment.

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What is a favorable outcome?

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A favorable outcome is an outcome that satisfies the conditions of the event we are interested in.