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Independent events

Definition

Two events where the occurrence of one provides no information about the other: P(A and B) = P(A) x P(B). In forensic STR profiling, loci on different chromosomes are treated as independent, permitting allele frequencies to be multiplied across loci to compute a profile probability.

Related terms

Complement
A group of heat-labile serum proteins (approximately 30 proteins, designated C1 through C9 in the classical pathway) that can be activated by...
Conditional probability
The probability of event A given that event B has already occurred, written P(A|B). Conditional probability is the basis of the multiplication...
Event
Any subset of the sample space to which a probability is assigned. An event may be a single outcome (this particular allele)...
Mutually exclusive events
Two events that cannot both occur in the same trial. If a fibre is classified as cotton, it cannot simultaneously be classified...
Sample space
The set of all possible outcomes of an experiment. In forensic genetics, the sample space for a single allele call is the...

Explained in

  • Basic Probability RulesTwo events where the occurrence of one provides no information about the other: P(A and B) = P(A) x P(B). In forensic STR profiling, loci on different chromoso...

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