What's the formula for probability
Answers
Answer:
Divide the number of events by the number of possible outcomes. This will give us the probability of a single event occurring. In the case of rolling a 3 on a die, the number of events is 1 (there's only a single 3 on each die), and the number of outcomes is 6.
Step-by-step explanation:
Formula to Calculate Probability
The formula of the probability of an event is:
Probability of an Event Formula
Probability Formula
Or,
P(A) = n(A)/n(S)
Where,
P(A) is the probability of an event “A”
n(A) is the number of favourable outcomes
n(S) is the total number of events in the sample space
Note: Here, the favourable outcome means the outcome of interest.
Sometimes, students get confused about the word “favourable outcome” with “desirable outcome”. In some of the requirements, losing in a certain test or occurrence of an undesirable outcome can be a favourable event for the experiments run.