SOLUTION: Suppose a certain traffic light shows a red light for 41 seconds, a green light for 45 seconds, and a yellow light for 5 seconds. If you look at this light at a randomly chosen

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose a certain traffic light shows a red light for 41 seconds, a green light for 45 seconds, and a yellow light for 5 seconds. If you look at this light at a randomly chosen       Log On


   



Question 1165855: Suppose a certain traffic light shows a red light for 41 seconds, a green light for 45 seconds, and a yellow light for 5 seconds.
If you look at this light at a randomly chosen instant, what is the probability that you see a red or yellow light?

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
the cycle is 91 seconds
red or yellow occurs for 46 seconds
probability of either of those is 46/91