a box contains 5 green pens, 3 blue pens, 8 black pens, and 4 red pens. A pen is picked at random. What is the probability that the pen is green?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Subject: Discrete Structures

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a box contains 5 green pens, 3 blue pens, 8 black pens, and 4 red pens. A pen is picked at random. What is the probability that the pen is green?

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