Probability is used to find the number of occurrence of an event out of possible outcomes. Probability should always lies between 0 and 1.
Single Event probability definition:
Single-event probability is used to find the probability for a single event that occurs for an experiment. For example, consider tossing a coin, we will get single event (either head or tail) as expected result.
Formula:
Probability that event A occurs P(A) = n(A) / n(S).
where,
n(A) - number of event occurs
n(S) - number of possible outcomes
Probability that event A does not occur P(A') = 1 - P(A).
where,
P(A) is the probability of single event A.
Example:
Consider a die is rolled, there is a chance of six different outcomes as 1,2,3,4,5 and 6. Calculate the probability of getting even numbers?
where,
n(A) = 3, total number of even numbers occured is 3.
n(S) = 6, total number of outcomes is 6.
Probability that event A occurs = P(A) = n(A) / n(S) = 3 / 6 = 0.5.
Probability that event A does not occur = P(A') = 1 - P(A) = 1 - 0.5 = 0.5.
This tutorial will guide you to calculate the basic probability distribution for a single event.
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