SOLUTION: Please help! A traffic signal is green for 20 seconds, then amber for 5 seconds, then red for 30 seconds. When you reach the signal, what is the probability it is:
a: green b
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a: green b
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Question 342676: Please help! A traffic signal is green for 20 seconds, then amber for 5 seconds, then red for 30 seconds. When you reach the signal, what is the probability it is:
a: green b: amber Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Please help! A traffic signal is green for 20 seconds, then amber for 5 seconds, then red for 30 seconds. When you reach the signal, what is the probability it is:
a: green
P(green) = 20/55 = 0.3636
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b: amber
P(amber) = 5/55 = 1/11= 0.0909
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cheers,
Stan H.
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