An analysis of public emergency response times to calls made in the small city points out that these responses are normally distributed with the mean μ = 240 seconds and standard deviation σ = 40 seconds.
a. Find out the probability that a particular call lasted between 180 and 300 seconds?
b. Find out the probability that a particular call lasted between 110 and 180 seconds?
c. Find out the probability that a particular call lasted less than 180 seconds?
d. Find out the probability that a particular call lasted more than 280 seconds?