Complement Probability

The complement of an effect is information that is non the incident, then the complement of the probability is an probability that does non come upward from the event.

Complement Probability Formula

Information :

P(A^c) = Complement probability of A

P(A) = Probability of A

Example of The Complement Probability

In a box at that topographic point is a ball that is numbered 1 to 10. If taken a ball, what is the probability of emergence is non prime publish ??

Resolution:

S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} 

n(S) = 10

For trial the emergence of prime publish is A, so:
A = {2, 3, 5, 7}
n(A) = 4

Because nosotros volition await for probabilities that seem non prime numbers, then nosotros must purpose the complement formula an incident:

P(A^c) = one - P(A) 

P(A^c) = one - 0.4 

P(A^c) = 0.6

So the probability of the emergence of the ball is non the prime publish is 0.6.

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Reference :

• The mathematics majority of the high schoolhouse cast XI IPA program