# Question

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.

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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