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What is the probability of two mutually exclusive events?

What is the probability of two mutually exclusive events?

Two events are mutually exclusive if they cannot occur at the same time

A deck of cards has 52 cards

What is the probability that a card is either a queen or a jack? Note word OR for mutually exclusive events, , We simply add here

The probability of a King or jack is 4/52 or 1/13,

When we combine these two Events:

The probability of a King or a Jack is (1/13) + (1/13) = 2/13

P(A or B) = P(A) + P(B)