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What is a probability model?

Back

A probability model is a mathematical representation of a random phenomenon, describing the likelihood of different outcomes.

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CCSS.7.SP.C.7A

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How do you calculate the expected value in a probability model?

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The expected value is calculated by multiplying each possible outcome by its probability and summing all these products.

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CCSS.HSS.MD.A.2

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What is the probability of an event?

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The probability of an event is a measure of the likelihood that the event will occur, ranging from 0 (impossible) to 1 (certain).

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CCSS.7.SP.C.5

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If a spinner has 6 equal sections, what is the probability of landing on any one section?

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The probability is 1/6, since there is one favorable outcome and six possible outcomes.

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CCSS.7.SP.C.7A

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What does it mean for outcomes to be equally likely?

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Outcomes are equally likely if each outcome has the same chance of occurring.

Tags

CCSS.7.SP.C.7A

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How can you represent a probability model using a spinner?

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A spinner can represent a probability model by dividing it into sections that correspond to different outcomes, with the size of each section reflecting the probability of that outcome.

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CCSS.7.SP.C.7B

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What is the complement of an event?

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The complement of an event is the set of all outcomes in the sample space that are not included in the event.

Tags

CCSS.HSS.CP.A.1

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If the probability of event A is 0.2, what is the probability of not A?

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The probability of not A is 1 - 0.2 = 0.8.

Tags

CCSS.7.SP.C.5

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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 random experiment.

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How do you find the probability of multiple independent events occurring?

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To find the probability of multiple independent events occurring, multiply the probabilities of each individual event.