The Waiting Time at an Elevator Is Uniformly Distributed Between

question 47

Multiple Choice

The waiting time at an elevator is uniformly distributed between 30 and 200 seconds.Find the mean and standard deviation of the waiting time.

• A) 115 seconds and 49.07 seconds
• B) 1.15 minutes and 0.4907 minutes
• C) 1.15 minutes and 24.08333 (minute)²
• D) 115 seconds and 2408.3333 (second)²

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Definitions:

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A consistent decrease in quantity, quality, or value over a period of time.

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