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A bag contains 3 red balls, 4 green balls, and 5 yellow balls. If balls are drawn one at a time without replacement, what is the probability that the first yellow ball is drawn on the eighth draw? Express your answer as a common fraction.

 

Four slips of paper labeled A,B,C and D are drawn from a hat at random, one at a time, without replacement. What is the probability of drawing C first and D last? Express your answer as a common fraction.

 

Rolling four standard dice, what is the probability that the product of the four results is even?

 May 22, 2021
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Actually I just need the first and third one

 May 22, 2021

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