Tow intersections with traffic signals

Reference no: EM1392744

The route used by a certain motorist in commuting to work contains tow intersections with traffic signals. The probability that he must stop at the first signal is 0.4, the analogous probability for the second signal is 0.5. and the probability that he must stop at least one of two signals is .6. what is the probability that he must stop

1. At both signals?

2. At the second signal but not at the first one?

3. At exactly two signals?

Reference no: EM1392744

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