Dictionary

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joint probability
The probability of event A and event B happening at the same time is expressed as P(A & B). For independent events A and B, P(A & B)=P(A)P(B). P(A & B) is also known as the probability of intersection of events A and B, from the Venn diagram description.
Julia set
The set of all the points for a function of the form Z^2+C. The iterations will either approach zero, approach infinity, or get trapped (cf Prisoners and Escapees -- Julia Sets Discussion).

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