Ex. 1. A contractor purchases a shipment of 30 computers. It is assumed that, the number of computers with some nonconformities is 0, 1 or 2 with the same probability 1/3. 10 computers from that shipment were randomly chosen and tested. What is the probability, that in this shipment are exactly 2 computers with some nonconformities, if all tested computers were good?
Ex. 1. A contractor purchases a shipment of 30 computers. It is assumed that, the number of computers with some nonconformities is 0, 1 or 2 with the same probability 1/3. 10 computers from that shipment were randomly chosen and tested. What is the probability, that in this shipment are exactly 2 computers with some nonconformities, if all tested computers were good?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Ex. 1. A contractor purchases a shipment of 30 computers. It is assumed that, the number of computers with some
nonconformities is 0, 1 or 2 with the same probability 1/3. 10 computers from that shipment were randomly chosen and
tested. What is the probability, that in this shipment are exactly 2 computers with some nonconformities, if all tested
computers were good?
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