Probability

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What is Probability?

Back

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

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What is Theoretical Probability?

Back

The ratio of favorable outcomes to the total number of possible outcomes.

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What is Experimental Probability?

Back

The ratio of favorable outcomes to the total number of trials in an experiment.

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What is a Sample Space?

Back

The set of all possible outcomes of a probability experiment.

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What is an Event in Probability?

Back

An event is a specific outcome or a set of outcomes from a probability experiment.

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How do you calculate the probability of a single event?

Back

P(A) = \frac{Number \ of \ favorable \ outcomes}{Total \ number \ of \ outcomes}.

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What is the probability of rolling a 7 with a single die?

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0, as a single die can only roll numbers 1 through 6.

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What is the probability of getting heads when tossing a fair coin?

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P(Heads) = \frac{1}{2}.

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What is Conditional Probability?

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The probability of an event occurring given that another event has already occurred, denoted as P(A|B).

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What is the formula for Conditional Probability?

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P(A|B) = \frac{P(A \cap B)}{P(B)}.