SOLUTION: A bag contains 5 red marbles, 3 blue marbles, and 4 yellow marbles. If 3 marbles are drawn out with replacement, what is the probability that the 2nd marble is yellow?

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Question 1136186: A bag contains 5 red marbles, 3 blue marbles, and 4 yellow marbles. If 3 marbles are drawn out with replacement, what is the probability that the 2nd marble is yellow?
Answer by ikleyn(52881) About Me  (Show Source):
You can put this solution on YOUR website!
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If the marbles are drawn with replacement, it means that the starting situation is THE SAME at each trial - 

    the same as it is given/described by the condition.



In particular, it means that in this probability experiment the situation at the second trial is the same as at the first.



Therefore, the answer to the problem's question is


    P = 4%2F%285%2B3%2B4%29 = 4%2F12 = 1%2F3 = 0.3333 = 33.33%.