Probability (without replacement)
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Using probabilities, please help determine when to add and multiply probabilities:
7 white socks and 4 black socks are in a bag. 2 are drawn random without replacement. What is the probability they are the same color? Please explain process.
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Solution Summary
This provides an example of determining probabilities of socks drawn from a bag without replacement.
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Probability of drawing a white sock:
= 7/11
Probability of drawing a white AND another white
= (7/11)*(6/10)
= ...
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