The theoretical probability is a measurement of the likelihood that an event will occur.
● The experimental probability should get closer to the theoretical probability as the number of
trials increases.
The expected occurrence of an event is the number of times an event is expected to take place in a
given number of trials.
The experimental probability of an event is the probability of an outcome that is obtained from the
results of an experiment.
● Instead of writing ‘the theoretical probability is’, we can write Pr(event)