Unformatted text preview: f ( x ) = λeλx , λ > 0, x ≥ 1 λ 1 λ 2 (11 λ t )1 Normal f ( x ) = 1 σ √ 2 π e1 2 ( xμ σ ) 2 μ σ 2 e μt + t 2 σ 2 2∞ < x < + ∞ Remarks: Binomial: X represents the number of successes among n trials. Geometric: X represents the number of trials needed until the ﬁrst success. Negative Binomial: X represents the number of trials needed until r successes occur. Hypergeometric: X represents the number of items among the n selected that comes from the r group. Poisson: X represents the number of events that occur in time, area, etc....
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 Winter '10
 Christou
 Normal Distribution, Probability theory, Number Number Number, Los Angeles Department of Statistics, Function Mean Variance

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