Events are independent if the outcome of one event does not affect the outcome of another. For example, if you throw a die and a coin, the number on the die does not affect whether the result you get on the coin.
If A and B are independent events, then the probability of A happening AND the probability of B happening is P( A) × P( B).
P(A and B) = P(A) × P(B)
Read the lesson on independent probability for more information and examples.
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