Timeline Distribution graph

#### Description

The gamma experiment consists of running a Poisson process until the time of the $$n$$th arrival. The arrivals are shown as red dots in the timeline. The probability density function and moments of the $$n$$th arrival $$T_n$$ are shown in blue in the distribution graph, and are recorded in the distribution table. On each update, the empirical density function and moments are shown in red in the distribution graph and are recorded in the distribution table. The arrival time is recorded on each update. The parameters are the rate of the process $$r$$ and the arrival number $$n$$, which can be varied with the input controls.