Conditional Probability - Concept

Concept Concept (1)

Conditional probability is the probability of some event, given the occurrence of another event. Conditional probability is often written as P (A l B) and is defined as the probability of A and B occurring together, divided by the probability of A. This concept is often used in scientific experiments.

Sample Sample Problems (2)

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Conditional Probability - Problem 1

P(A and B) = ¼

P(B|A) = ⅔

Find P(A)
Problem 1
How to find the conditional probability of an event from a symbolic definition.