Back to: MATHEMATICS SS2
Welcome to class!
In today’s class, we will be talking more about probability. Enjoy the class!
Mutually Exclusive Event
Mutually exclusive events are events which cannot together at the same time. One event will pave way for the other, in such a case the separate probability are added together probabilities are added to give the combined probability.
Additional Law of Probability
If event A, B, C…. are mutually exclusive, the probability of A or B or C or…. Happening is the sum of their individual probabilities.
P(A) + P(B) + P(C) + ……..
Note: use the addition law to solve problems that contain the word or either/or.
A bag contains 3 red balls, 4 blues balls 5 white balls and 6 black balls. A ball is picked at
Random, what is the probability that it is either:
- Red or blue
- Blue or black
- Red, white or blue
- Blue, white or black
- Neither red nor
We hope you enjoyed the class.
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