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# Poisson distribution waiting time online calculator

Mean(number of event per time): Less than t Greater than t

## You can see a sample solution below. Enter your data to get the solution for your question

$$\displaylines{\\ \\ \lambda \; = \frac{events}{time} = 6 \\ \\ Formula\;for\;waiting\;time\;less\;than\;is\;P(X<t)\;= 1-e^{-\lambda*t} \\ \\ P(x<2) =\; 1-e^{-6*2} \\ \\ \mathbf{\color{Red}{0.999994}} }$$