An urn contains five red R balls numbered 1, 2, 3, 4 and 5, five white W balls numbered 6, 7, 8, 9 and 10, and three black B balls numbered 11, 12 and 13. A ball is drawn from the urn. What is the probability that it is not black?
A) Pr(Not B) =
B) Pr(Not B) =
C) Pr(Not B) =
D) Pr(Not B) =
E) Pr(Not B) =
Correct Answer:
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