Question: A commuter must pass through five traffic lights on her

A commuter must pass through five traffic lights on her way to work and will have to stop at each one that is red. After keeping a record for several months, she developed the following probability model for the number of red lights she hits:
a) How many red lights should she expect to hit each day?
b) What’s the standard deviation?

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  • CreatedMay 14, 2015
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