A box contains 15 red pencils, 8 yellow pencils and 2 green pencils. Two pencils are picked at random without replacement. Find the probability that at least one pencil is red. .............................................
Exam No：0580_w20_qp_41 Year：2020 Question No：9(d)
Answer:
\(\frac{17}{20}\) oe
Knowledge points:
E8.3 Understand that the probability of an event occurring = 1 – the probability of the event not occurring.
Solution:
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