A computer retail store has 12 personal computers in stock. A buyer wants to purchase 2 of them. Unknown to either the retail store or the buyer, 2 of the computers in stock have defective hard drives. Assume that the computers are selected at random. (a) In how many different ways can the 2 computers be chosen? answer: (b) What is the probability that exactly one of the computers will be defective? answer: (c) What is the probability that at least one of the computers selected is defective? answer:

A computer retail store has 12 personal computers in stock. A buyer wants to purchase 2 of them. Unknown to either the retail store or the buyer, 2 of the computers in stock have defective hard drives. Assume that the computers are selected at random. (a) In how many different ways can the 2 computers be chosen? answer: (b) What is the probability that exactly one of the computers will be defective? answer: (c) What is the probability that at least one of the computers selected is defective? answer:

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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