Consider writing onto 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 u = 0.2. (Round your answers to three decimal places.) (a) What is the probability that a disk has exactly one missing pulse? (b) What is the probability that disk has at least two missing pulses? (c) If two disks are independently selected, what is the probability that neither contains a missing pulse?

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