Question: Suppose a quality manager for Dell Computers has collected the following data on the quality status of disk drives by supplier. She inspected a total

Suppose a quality manager for Dell Computers has collected the following data on the quality status of disk drives by supplier. She inspected a total of 700 disk drives.

a. Based on these inspection data, what is the probability of randomly selecting a disk drive from company B?
b. What is the probability of a defective disk drive being received by the computer company?
c. What is the probability of a defect given that company B supplied the disk drive?

Drive Status Workig Defective 120 180 50 300 10 15 Company A Company B Company C Company ID 20

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