Speed Machine

5 % of the computer keyboards produced by an automatic, high-speed machine are defective.? 5 % of the computer keyboards produced by an automatic, high-speed machine are defective. What is the probability that out of six keyboards selected at random, exactly zero keyboards will be defective? A) 0.001 B) 0.167 C) 0.735 D) 0.500 you can solve via binomail probability: P(r) = [n!/r!(n-r)!]p^rq^(n-r) where r is the number of occurrences, here =0 n is the total sample size, here 6 p is probability of occurence 0.05 q is probability of non occurrence, here 0.95 this becomes: P(0)=6!/6! (0.05)^0*(0.95)^6 =0.735 YOu can also see how the Poisson distribution works here: P(r) = exp(-lambda)*(lambda)^r/r! where lambda is the expected number of occurrences; since you have a 0.05 chance of a defect, your expected value in 6 samples is 6x0.05 = 0.30; again, r=0, so: P(0)=exp(-0.3)*(0.3)^0/0! =exp(-0.3)=0.741 the Poisson distribution is a quick way of finding probabilities when you have large sample sizes, but you see it works pretty well here

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Super Speed Machines is one of the top Nintendo DSi Games nowadays. With it's superb gaming environment and awesome graphics, Super Speed Machines is a must-have for all DSi Gamers. In this article, I will show you how to download Super Speed Machines DSi Game For Free!

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Nintendo DSi Center contains over 300,000 Downloads making it the Biggest Database for the DS/DSi/DSi XL!

Nintendo  DSi Center is a complete online database for your Nintendo DSi Consoles!