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·       Format:

Geometric(p)

·       Probability mass function:

f(x)=p(1-p)^{x-1}

·       Cumulative distribution function:

F(x)=1-(1-p)^x

·       Parameter restrictions:

0<p \leq 1

·       Domain: 

x = {1, 2, 3,...}

·       Mean:

\frac{1}{p}

·       Mode: 

1

·       Variance:

\frac{1-p}{p^2}

 


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