Probability function (English)
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Definition Niveau 4
For a discrete random variable X which can take values xi, a probability function is a function f(xi)=pi, which gives the probability of X taking each different value.
Note that we must have ∑i=1n pi = 1 if X has n possible values, or ∑i=1∞ pi = 1 if it has infinitely many possible values.
Note that we must have ∑i=1n pi = 1 if X has n possible values, or ∑i=1∞ pi = 1 if it has infinitely many possible values.
Beziehungen:
- weiterer Begriff:
- (en) Function
- bezieht sich auf:
- (en) Discrete random variable
- ist bezogen auf:
- (en) Cumulative probability function
- (en) Probability generating function
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