Question 341674: A complete cycle of a traffic light takes 80 seconds. During each cycle, the light is green for 40 seconds, amber for 10 seconds, and red for 30 seconds. At a randomly chosen time, what is the probability that the light will not be red?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A complete cycle of a traffic light takes 80 seconds. During each cycle, the light is green for 40 seconds, amber for 10 seconds, and red for 30 seconds. At a randomly chosen time, what is the probability that the light will not be red?
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P(red) = 30/80 = 3/8
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Cheers,
Stan H.
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