# Geometric distribution (chart)

## Calculates a table of the probability mass function, or lower or upper cumulative distribution function of the geometric distribution, and draws the chart.

select function
 probability mass f lower cumulative distribution P upper cumulative distribution Q
probability of success p
 0≦p≦1
[ initial percentile x
(failure number)
 before success
increment
 repetition ]

 $\normal Geometric\ distribution\\[10](1)\ probability\ mass\\\hspace{30}f(x,p)=p(1-p)^x\\(2)\ lower\ cumulative\ distribution\\\hspace{30}P(x,p)={\large\sum_{t=0}^{x}}f(t,p)\\(3)\ upper\ cumulative\ distribution\\\hspace{30}Q(x,p)={\large\sum_{t=x}^{\infty}}f(t,p)\\$

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