The time X (min) for a lab assistant to prepare the equipment for a certain experiment is believed to have a uniform distribution with A = 25 and B = 35. (a) Determine the pdf of X. f(x) = Sketch the corresponding density curve. f(x) 0.20 O 0.15 0.10 0.05 f(x) 0.20 0.15 0.10 0 0.05 25 25 30 30 SXS otherwise 35 35 X (b) What is the probability that preparation time exceeds 26 min? f(x) 0.20 O 0.15 0.10 0.05 f(x) 0.20 0.15 0.10 0.05 25 25 30 30 35 35

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