What Is the Formula to Determine Probability?

By Staff WriterLast Updated Mar 30, 2020 3:53:07 AM ET

The formula to determine probability is dividing the number of ways an event can occur by the total possible outcomes. Probability is defined as the measurement of how likely an event will occur. This event is the results or outcomes of an experiment.

An experiment is defined as a situation containing the chance or probability that will lead to results or outcomes. The value of a probability is no greater than 1 and no less than 0. Probabilities can be referred to as percentages. If the probability of flipping a coin and landing on heads is 1 in 2, it can be said that a coin will land on heads fifty percent of the time.