Question: 3-103. A particularly long traffic light on your morning com- mute is green 20% of the time that you approach it. Assume that each morning

 3-103. A particularly long traffic light on your morning com- mute

3-103. A particularly long traffic light on your morning com- mute is green 20% of the time that you approach it. Assume that each morning represents an independent trial. (a) Over 5 mornings, what is the probability that the light is green on exactly one day? (b) Over 20 mornings, what is the probability that the light is green on exactly four days? (c) Over 20 mornings, what is the probability that the light is green on more than four days? 10

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