• Three labs, A, B, and C produce, respectively, 40 percent, 10 percent, and 50 percent of our finished prescription glasses. The percentage of defective items produced by the labs is, respectively, 3 percent, 4 percent, and 5 percent. A VIP order is generated, randomly allocated to one of the labs, and the finished pair of glasses is sent to our headquarters.
  • 1.Find the probability that the pair of glasses is defective.
  • 2. If the pair of glasses are defective, find the probability that it was produced by:
  • Lab A
  • Lab B
  • Lab C