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The commuter trains on the Red Line for the Regional Transit Authority (RTA) in Cleveland, OH, have a waiting time during peak rush hour periods of eight minutes ("2012 annual report," 2012).

Find the height of this uniform distribution. Answer: 0.125
Find the probability of waiting between four and five minutes. Answer: 0.500
Find the probability of waiting between three and eight minutes. Answer: 0.625
Find the probability of waiting five minutes exactly. Answer: 0

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