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a bag contains blue, green, yellow, and red marbles. The probability of drawing a yellow marble is 3/20. What is the probability of not drawing a yellow marble?
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a bag contains blue, green, yellow, and red marbles. The probability of drawing a yellow marble is 3/20. What is the probability of not drawing a yellow marble?

User Patrick Ohly
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Since 3/20 is the probability of drawing a yellow marble. Not drawing a marble is actually the exact opposite of drawing a marble.

Therefore, NOT drawing of a yellow marble is 17/20

(20/20) - (3/20) = (17/20)
User TMSCH
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