Q/ The quality control department examines all the products returned to a store by customers. An examination of the returned products yields the following assessment: 5% are defective and not repairable, 45% are defective but repairable, 35% have small surface scratches but are functioning properly, and 15% have no problems. Compute the following probabilities for a random sample of 20 returned products: a) All of the 20 returned products have some type of problem. b) Exactly 6 of the 20 returned products are defective and not repairable. c) Of the 20 returned products, 6 or more are defective and not functioning properly. d) None of the 20 returned products has any sort of defect.
Q/ The quality control department examines all the products returned to a store by customers. An examination of the returned products yields the following assessment: 5% are defective and not repairable, 45% are defective but repairable, 35% have small surface scratches but are functioning properly, and 15% have no problems. Compute the following probabilities for a random sample of 20 returned products: a) All of the 20 returned products have some type of problem. b) Exactly 6 of the 20 returned products are defective and not repairable. c) Of the 20 returned products, 6 or more are defective and not functioning properly. d) None of the 20 returned products has any sort of defect.
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:Q/ The quality control department examines all the products returned to a store
by customers. An examination of the returned products yields the
following assessment: 5% are defective and not repairable, 45% are
defective but repairable, 35% have small surface scratches but are
functioning properly, and 15% have no problems. Compute the following
probabilities for a random sample of 20 returned products:
a) All of the 20 returned products have some type of problem.
b) Exactly 6 of the 20 returned products are defective and not repairable.
c) Of the 20 returned products, 6 or more are defective and not functioning
properly.
d) None of the 20 returned products has any sort of defect.
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