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天边流风 - 2006-4-15 7:16:00
in the high school parking  lot 16% of the vehicles are trucks and 8% of the
vehicles are painted yellow.if these characteristics are mutually exclusive,what is the probability that a vehicle in the high-school parking lot will be a
yellow truck??


reindeer - 2006-4-15 13:04:00
似乎是一道英文智力题。汉语意思如下:
中学的停车场上16%的车是卡车,其中的8%被涂成了黄色。如果这些特征互相排斥的话,停车场上的一辆车是黄颜色的卡车的可能性是多少?
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