The daily amount of coffee, in liters, dispensed by a machine located in an airport lobby is a random variable X having a continuous uniform distribution with A= 9 and B = 12. Find the probability that on a given day the amount of coffee dispensed by this machine will be (a) at most 10.2 liters; (b) more than 9.3 liters but less than 10.2 liters; (c) at least 11.4 liters.

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