Mathematics, 03.01.2020 03:31 brutalgitaffe
Choose an american household at random and let the random variable x be the number of cars (including suvs and light trucks) they own. given is the probability distribution if we ignore the few households that own more than 5 cars. number of cars 0 1 2 3 4 5 probability 0.09 0.36 0.35 0.13 0.05 0.02 about what percentage of households have a number of cars within 2 standard deviations of the mean?
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