According to a survey of Australian households,the probability that the residents own 2 cars if annual household income is over $50,000 is 80%.Of the households surveyed,60% had incomes over $50,000 and 70% had 2 cars.The probability that the residents of a household do not own 2 cars and have an income over $50,000 a year is
A)0.12.
B)0.18.
C)0.22.
D)0.48.

Question

Quizplus · Accepted Answer

The probability that a household has an income over $50,000 and owns 2 cars is 0.6 * 0.8 = 0.48. The probability that a household has 2 cars is 0.7. Therefore, the probability that a household does not own 2 cars and has an income over $50,000 is 0.6 - 0.48 = 0.12.

According to a Survey of Australian Households,the Probability That the Residents