Basic Theoretical Probability

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What is theoretical probability?

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Theoretical probability is the likelihood of an event happening based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

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How do you calculate the theoretical probability of an event?

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Theoretical probability = (Number of favorable outcomes) / (Total number of possible outcomes).

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What is the theoretical probability of choosing a red marble from a jar with 4 blue, 8 red, and 2 green marbles?

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What is the theoretical probability of rolling an even number on a standard six-sided die?

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If an event is absolutely certain, what is its probability?

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100% or 1.

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What is the theoretical probability of spinning a 7 on a spinner divided into 8 equal sections?

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What is the probability of an event that cannot happen?

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0% or 0.

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What is the probability of rolling a number greater than 4 on a standard die?

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What does it mean if the probability of an event is 50%?

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It means the event is equally likely to happen or not happen.

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What is the theoretical probability of drawing a green marble from a jar with 4 blue, 8 red, and 2 green marbles?

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