Unformatted text preview: 0.5 + 0.5 = 1 (or certainty) Example 1 What is the probability of at least one spade or one club being randomly chosen in one draw from a deck of cards? The probability of drawing a spade in one draw is ; the probability of drawing a club in one draw is . These two outcomes are mutually exclusive in one draw because you cannot draw both a spade and a club in one draw; therefore, you can use the addition rule to determine the probability of drawing at least one spade or one club in one draw:...
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- Fall '08
- Probability, coin flip, coin flip landing