Question

Can someone please explain the solutions

2. Assume that the flaws along a magnetic tape follow a Poisson distribution with mean 0.2 flaw per meter. Let X be the distance between two consecutive flaws. (a) Given that there were no flaws in the first 10 consecutive meters of tape, what is the proba- bility of having a flaw in the next 5 meters? [3 marks] (b) How many meters of tape need to be inspected so that the probability that at least one flaw is found is 90%? [2 marks]

Answer 1

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