The probability of the union of two events is the sum of their probabilities minus the probability of their intersection.

4

If an event is a subset of another event, its probability is less than or equal to it.

5

If A_{1}, A_{2}, ..., A_{k} are mutually exclusive between them, then:

6

If the sample space S is finite and an event is S = {x_{1}, x_{2}, ..., x_{n}} then:

For example, the probability of obtaining an even number, when rolling a die, is:

P(even) = P(2) + P(4) + P(6)

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Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.

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