EXAMPLE 3 and EXAMPLE 4 on page 324 show how you do not always need to use the conditional probability formula to solve one of these problems if you can easily see how the sample space is reduced.You simply find the probability using the new sample space as your denominator.This is important! You should always consider this when starting a probability problem.

1.If you are asked to pick 2 cards without replacement, how does it reduce your sample space?

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