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Statement of a problem № m307

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Computers in a shipment of 100 units contain a portable hard drive, CD RW drive, or both according to the following table: Portable hard drive Yes No CD RW Yes 15 80 No 4 1 Let A denote the events that a computer has a portable hard drive and let B denote the event that a computer has a CD RW drive. If one computer is selected randomly, compute (a) P (A) (b) P (A ∩ B) (c) P (A U B) (d) P (A’ ∩ B) (e) P (A|B)

Solution:
Computers in a shipment of 100 units contain a portable hard drive, CD RW drive,

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