A marketing survey compiled data on the number of cars in households. If X = the number of cars in a randomly selected household, and we omit the rare cases of more than 5 cars, then X has the following probability distribution: %3D 1 4 P(X=x) 0.24 0.37 0.20 0.11 0.05 What is the probability that a randomly chosen household has at least two cars? elect one: O a. 0.39

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A:

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A: Given that Total=160

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A: A.   Z-score for proportion:

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