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Q1) Analysis of public emergency response times to calls made in small city points out that these responses are normally distributed with mean μ = 240 seconds and standard deviation σ = 40 seconds.

i) Find out the probability that particular call lasted between 180 and 300 seconds?

ii) Determine the probability that particular call lasted between 110 and 180 seconds?

iii) Determine the probability that particular call lasted less than 180 seconds?

iv) Determine the probability that particular call lasted more than 280 seconds?

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