A particular professor never dismisses class early. Let x denote the amount of time past the class end time (in minutes) that elapses before the professor dismisses class. Suppose that x has a uniform distribution on the interval from 0 to 10 minutes. The density curve is shown in the following figure. Density 1 10 X 0 10 Time (minutes) (a) What is the probability that at most 6 minutes elapse before dismissal? 1.0 (b) What is the probability that between 3 and 7 minutes elapse before dismissal? 1.0

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