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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, expressed as a number between 0 and 1.

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CCSS.7.SP.C.5

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If a spinner has 4 equal sections, what is the probability of landing on any one section?

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The probability is 1/4, since there are 4 equal sections.

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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 do you represent a probability model using a spinner?

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A spinner can represent a probability model by dividing it into equal sections, each representing a different outcome.

Tags

CCSS.7.SP.C.7A

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What is the expected number of times a number will be selected if a spinner is spun multiple times?

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Multiply the total number of spins by the probability of landing on that number.

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How can you simulate choosing from different items in a bag?

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You can simulate this by using a random selection method, such as drawing colored marbles that represent the items.

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CCSS.7.SP.C.8C

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What is the formula for calculating the probability of multiple events occurring?

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For independent events, multiply the probabilities of each event. For dependent events, adjust the probabilities based on previous outcomes.

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What is a random experiment?

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A random experiment is a process that leads to one of several possible outcomes, where the outcome cannot be predicted with certainty.