Which of the following expression holds for the Poisson’s model that accounts for nonuniformity of flow that is derived by assuming the random pattern of vehicle arrivals at a specified point?
1
\(P\left( n \right) = \frac{{\lambda t \times {e^{ - t}}}}{{n!}}\)
2
\(P\left( n \right) = \frac{{{{\left( {\lambda t} \right)}^n} \times {e^{ - t}}}}{n}\)
3
\(P\left( n \right) = \frac{{{{\left( {\lambda t} \right)}^n} \times {e^{ - \lambda t}}}}{{n!}}\)
4
\(P\left( n \right) = \frac{{\lambda t \times {e^{ - \lambda t}}}}{{n!}}\)