Probability may also be described as the likelihood of an event occurring divided by the number of expected outcomes of the event. The formula to determine probability is dividing the number of ways an event can occur by the total possible outcomes. Many events cant be predicted with total certainty.
Probability of event A or B.
Probability of event A and B. The probability is 1352 x 1251 12204 117. P Y or Z P Y P Z. Probability formulas are useful for calculating the probability of an event to occur.