# Conditional Probability

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## Definition of 'Conditional Probability'

Conditional probability is a measure of the probability of an event occurring, given that another event has already occurred. It is calculated by dividing the probability of both events occurring by the probability of the first event occurring.

For example, if the probability of getting a heads on a coin toss is 1/2, and the probability of getting a tails on a coin toss is 1/2, then the probability of getting a heads given that you have already gotten a tails is 1/2 / 1/2 = 1.

Conditional probability is used in a variety of applications, such as risk assessment, decision making, and forecasting. In risk assessment, conditional probability can be used to estimate the likelihood of a particular event occurring, given the occurrence of other events. In decision making, conditional probability can be used to help make decisions by considering the possible outcomes of different choices. In forecasting, conditional probability can be used to predict the likelihood of future events, given the occurrence of past events.

Conditional probability is a powerful tool that can be used to make informed decisions and predictions. By understanding how conditional probability works, you can make better decisions and be more prepared for the future.

For example, if the probability of getting a heads on a coin toss is 1/2, and the probability of getting a tails on a coin toss is 1/2, then the probability of getting a heads given that you have already gotten a tails is 1/2 / 1/2 = 1.

Conditional probability is used in a variety of applications, such as risk assessment, decision making, and forecasting. In risk assessment, conditional probability can be used to estimate the likelihood of a particular event occurring, given the occurrence of other events. In decision making, conditional probability can be used to help make decisions by considering the possible outcomes of different choices. In forecasting, conditional probability can be used to predict the likelihood of future events, given the occurrence of past events.

Conditional probability is a powerful tool that can be used to make informed decisions and predictions. By understanding how conditional probability works, you can make better decisions and be more prepared for the future.

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