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ABD

families may own both an SUV and a car





a)100-28-72% b) 17+72=89% c) 17+4+7=28%

a)72*72=51.84% b) 28*28=7.84% c) 28*100=28%

a)the two events must be independent b) no, because families may treat their cars differently and thus require more frequent repairs than others