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A student driving to university must pass through two sets of traffic lights. The first set of lights is green 50% of the time, yellow
A student driving to university must pass through two sets of traffic lights. The first set of lights is green 50% of the time, yellow 10% of the time, and red 40% of the time. The second set of lights is green 60% of the time, yellow 10% of the time, and red 30% of the time. It is also known that the lights function independently.
What is the probability that the first light is green or the second light is red?
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