An urn contains 4 white, 3 black, 2 yellow and 5 red marbles. A marble is drawn at random. What is
the probability of drawing (a) A red marble?
(b) A non-black marble?
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Answer:
a. 5/14
b. 11/14
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Step-by-step explanation:
(a) 5/14
(b) non-black means 4 white, 2 yellow and 5 red
4+2+5/14 = 11/14
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