joint probability

noun — 2 senses

joint probability

noun
1

The probability distribution of a random variable whose sample space is the Cartesian product of the sample spaces of its (at least two) component random variables.

2

The probability that two events will occur simultaneously.

  • Given two events A and B in the same probability space with P(B)>0, the conditional probability of A given B is defined as the quotient of the unconditional joint probability of A and B, and the unconditional probability of B.ᵂᴾ
Related terms
joint entropy, conditional probability

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