Question: A commuter train arrives punctually at a station every half hour. Each morning, a commuter named John leaves his house and casually strolls to the








A commuter train arrives punctually at a station every half hour. Each morning, a commuter named John leaves his house and casually strolls to the train station. The time, in minutes, that John waits for the train is a variable with density curve y = 27 for 0
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