# hwF-N - Consider writing onto a computer disk and then...

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Consider writing onto a computer disk and then sending it through a certifier that counts the number of missing pulses. Suppose this number x has a Poisson distribution with parameter lambda=0.2 . a. What proportion of disks have exactly one missing pulse? b. What proportion of disks have at least two missing pulses? c. If disks are grouped ten to a package, the number of missing pulses on all ten disks will have a Poisson distribution with parameter lambda= 10(0.2) = 2. What proportion of ??? will have at least two missing pulses on the disks in the package? Do not answer the question asked in the problem! Instead, select one of the following for what "???" should be, if we want to use Possion to solve the problem. No explanation necessary. a) ??? = pulses b) ??? = disks c) ??? = packages

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x = c(3,8,10,11,13,16,27,30,35,37,38,44,103,142 ) y = c(4,7,8,8,10,11,16,26,21,9,31,30,75,90) pdf("hw_J.pdf") par(mfrow=c(2,2)) boxplot(x,y) # a) plot(x,y) # b) The data look pretty linear. qqnorm(x)

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hwF-N - Consider writing onto a computer disk and then...

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