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In Exercise 3 70 recall that a particularly

In Exercise 3-70, recall that a particularly long traffic light on your morning commute is green 20% of the time that you approach it. Assume that each morning represents an independent trial.

(a) What is the probability that the first morning that the light is green is the fourth morning that you approach it?

(b) What is the probability that the light is not green for 10 consecutive mornings?

(a) What is the probability that the first morning that the light is green is the fourth morning that you approach it?

(b) What is the probability that the light is not green for 10 consecutive mornings?

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