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A Computer Store Offers Used Computers Free to Local Middle

Question 30

Multiple Choice

A computer store offers used computers free to local middle schools. Of the 55 machines available, 15 have defective memories, 12 have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? ​


A) Pr(Defective) = A computer store offers used computers free to local middle schools. Of the 55 machines available, 15 have defective memories, 12 have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? ​ A) Pr(Defective) = B) Pr(Defective) = C) Pr(Defective) = D) Pr(Defective) = E) Pr(Defective) =
B) Pr(Defective) = A computer store offers used computers free to local middle schools. Of the 55 machines available, 15 have defective memories, 12 have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? ​ A) Pr(Defective) = B) Pr(Defective) = C) Pr(Defective) = D) Pr(Defective) = E) Pr(Defective) =
C) Pr(Defective) = A computer store offers used computers free to local middle schools. Of the 55 machines available, 15 have defective memories, 12 have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? ​ A) Pr(Defective) = B) Pr(Defective) = C) Pr(Defective) = D) Pr(Defective) = E) Pr(Defective) =
D) Pr(Defective) = A computer store offers used computers free to local middle schools. Of the 55 machines available, 15 have defective memories, 12 have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? ​ A) Pr(Defective) = B) Pr(Defective) = C) Pr(Defective) = D) Pr(Defective) = E) Pr(Defective) =
E) Pr(Defective) = A computer store offers used computers free to local middle schools. Of the 55 machines available, 15 have defective memories, 12 have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? ​ A) Pr(Defective) = B) Pr(Defective) = C) Pr(Defective) = D) Pr(Defective) = E) Pr(Defective) =

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