Questions 1619. In a certain community, 10% of households are low income ($50,000 or less), 60% 16. 17. 18. 19. are middle income (between $50,000 and $150,000), and 30% are high income ($150,000 or more). The following table is the crosstab of Income and the Number of Cars Own. where 3+ indicatt 3 ~r more cars. m r f w income 0 1 2 3 t Low 0.050 0.040 0.008 0.002 0.10 Middle 0.120 0.150 0.300 0.030 0.60 i 0 0 .04 0.1 5 0 Total 0.185 0.235 0.503 0.077 1.00 Among the households who mm 2 or more cars. the pmbabilit; that a household is either Middle or High Income is @057 (mg (03 (oi-Z (c333 The median number of cars owned by all households is (a) 0 (b) l (c) 2 ((1)3 (e) none of these The average number of cars owned by all households is closest to (a) 0.953 (b) L412 (c) 2 (d) 2.372 (e) 3 Three households are selected randomly from the Middle Income group, what is the probability that only one of them owns no car? (a) 0.16 (b) 0.26 (c) 0.36 (d) 0.48 (e) 0.58