The balls in the should fall in a standard distribution curve, also known as a Bell curve. This
curve is made when the majority of the balls fall into the middle rows. Each row farther away from the middle
receives fewer balls – the very outside rows often receive no balls at all. So, the probability of most of the balls
falling in the middle is very high, while the probability of most of the balls falling to the sides is very low.
Plastic balls, Equipment setup etc