The numbers of cars and trucks arriving per minute at a fuel station are modelled by independent variables with distributions $$\(\operatorname{Po}(0.8)\)$$ and $$\(\operatorname{Po}(0.5)\)$$ respectively． Use a suitable approximating distribution to find the probability that a total of fewer than 145 cars and trucks arrive at the fuel station during a randomly chosen 2-hour period. . . . . . . . . . . . . . . . . . . . . . . . . . . .

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