45% of a store's computers come from factory A and the remainder come from factory B.4% of computers from factory A are defective while 1% of computers from factory B aredefective. If one of the store's computers is selected at random, what is the probability thatit is defective and from factory B?

Introduction:Let A be the event that a randomly selected computer in the store is from factory A;…

Answered: 45% of a store's computers come from…

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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Similar questions

One light bulb is selected at random from a lot of 140 light bulbs, of which 5% are defective. What is the probability that the light bulb selected is defective?
A product is made by 3 machines, B1, B2, and B3 with 30%, 45% & 25%, respectively. The machines produce with 2%, 3% & 2% defective rates. A product is randomly chosen and it is defective. What is the probability that the product is made by machine B3?
A WAL*MART manager has five good light bulbs and four defected light bulbs in Box 1 and four good light bulbs and five defected light bulbs in Box 2. If the manager transfers one light bulb at random from Box 1 to Box 2, what is the probability of his then drawing a good light bulb from Box 2? (Round to four decimal places. Do not use %)
A friend of mine is giving a dinner party. His current wine supply includes 11 bottles of zinfandel, 9 of merlot, and 7 of cabernet (he only drinks red wine), all from different wineries. If 6 bottles are randomly selected, what is the probability that all of them are the same variety?
A manufacturing machine has a 5% defect rate. If 10 items are chosen at random, what is the probability that at least one will have a defect?
Carrie buys a bag of cookies that contains 6 chocolate chip cookies, 8 peanut butter cookies, 5 sugar cookies and 5 oatmeal raisin cookies. What is the probability that Carrie randomly selects a peanut butter cookie from the bag, eats it, then randomly selects another peanut butter cookie?
The vast majority of European vehicles sold in the world (BMW, Audi, Mercedes- Benz, etc...) receive their transmissions from either ZF Friedrichshafen AG or Continental AG. After the acquisition of TRW by ZF, ZF AG supplied 69% of transmissions, and Continental AG supplied 31%. If three European cars are randomly selected, what is the probability that 2 of the cars use ZF transmissions and 1 use Continental AG transmission? Enter your answer in percent terms (for example 12.5% must be entered as 12.5).
A manufacturing machine has a 9% defect rate.If 7 items are chosen at random, what is the probability that at least one will have a defect?

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