Computer purchases: Out of 809 large purchases made at a computer retailer, 347 were personal computers, 398 were laptop computers, and 64 were printers. As a part of an audit, one purchase record is sampled at random. Round the answers to four
decimal places, as needed.
(a) What is the probability that it is a laptop computer?
(b) What is the probability that it is not a printer?
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