More properties of probabilities
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More properties of probabilities

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If B is a set which is larger than A, then, the probability that the outcome falls inside B should be at least as big as the probability that the outcome falls inside A.

The probability of A union B is equal to the probability of A plus the probability of B, minus the probability of A intersection B.

The probability of A union B is always less than or equal to the probability of A plus the probability of B.

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