Question

Described an event that has a probability of 0 and a probability of 100

Answer 1

The event with the probability of 0 will definitely not happen.

The event with the probability of 100% will definitely happen.

As human beings we need some safe assumptions. Without those we could not get out of bed in the morning.

We assume that the probability of the Moon falling into the Pacific Ocean tomorrow is 0. We assume that the probability of the Sun rising tomorrow is 100%. We have no way to know either one but we assume both.