Engineering
Mathematics
Conditional Probability
Question
The sum of the probabilities of all the elementary events of an experiment is ____?
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Solution
The probability P of any event must be greater than or equal to 0.
In other words, 0 ≤ P ≤ 1 .
Since 1 is the maximum limit, all probabilities must add to 1.
Hence, the sum of the probabilities of all the elementary events of an experiment is 1.
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