A telephone company’s goal is to have no more than five monthly line failures on any 100 kilometres of line. The company currently experiences an average of two monthly line failures per 50 kilometres of line. Let x denote the number of monthly line failures per 100 kilometres of line. Assuming x has a Poisson distribution:
a) Find the probability that the company will meet its goal on a particular 100 kilometres of line.
b) Find the probability that the company will not meet its goal on a particular 100 kilometres of line.
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