The time it takes a mechanic to change the oil on a car is uniformly distributed between 11 and 30 minutes. The rectangle with area 1 below depicts this. The area of the shaded rectangle is the probability that a mechanic finishes the oil change between 13.17 minutes and 17.63 minutes. Find the area of the shaded rectangle. Round your answer to 4 decimal places (if possible). 13.17 + 17.63 + + + 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 The area of the shaded rectangle is

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