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    According to a survey of American households, the probability that the residents own 2 cars if annual household income is over $25,000 is 80%. Of the households surveyed, 60% had incomes over $25,000 and 70% had 2 cars. The probability that the residents of a household own 2 cars and have an income over $35,000 a year is.

    a. 0.12
    b. 0.18
    c. 0.22
    d. 0.48

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