In-Class Exercise: The Exponential Distribution

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In-Class Exercise: The Poisson Distribution

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In-Class Exercise: The Exponential Distribution 4-93. Assume that the flaws along a magnetic tape follow a Poisson distribution with a mean 0.2 flaws per meter. Let X denote the distance between two successive flaws. What is the mean of X? What is the probability that there are no flaws in 10 consecutive meters of tape? Does your answer to part (b) change if the 10 meters of tape are not consecutive? How many meters of tape need to be inspected so that the probability that at least one flaw is found is 90%?