A bag contains 9 white balls W and 9 red balls R. Three balls are drawn, without replacement, from the bag. Construct a probability tree to determine the probability that at least one white W ball is drawn.
A) Pr(at least one W) =
B) Pr(at least one W) =
C) Pr(at least one W) =
D) Pr(at least one W) =
E) Pr(at least one W) =
Correct Answer:
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