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A drawer in the...

A drawer in the supply room of the Mathematics Department contains 18 red pens, 21 blue pens, and 14 green pens. If two pens are randomly selected from the drawer without replacement, what is the probability the second pen chosen is red?Give your answer as a decimal rounded to 4 decimal places.(Hint: In this problem you may need to consider two cases. In the first case, the first pen chosen is not red and the second pen chosen is red. In the second case, the first pen chosen is red and the second pen chosen is also red.) I need help solving this problem

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