Question: Suppose a quality manager for Dell Computers has collected(4) 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(4)
the following data on the quality status of disk drives by supplier.
She inspected a total of 700 disk drives.
Drive Status
Supplier Working Defective
Company A 120 10
Company B 180 15
Company C 50 5
Company D 300 20
a.Based on these inspection data, what is the probability of randomly selecting a disk drive is from company D and working ?
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?
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