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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.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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.
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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