Question

17. A random sample of Ohio voters was asked about the number of cars or trucks they own (ne, two, or at least three) and the type of community in which they live (rural, suburban, urban). The two way table follows Community Type Number of Cars Rural Suburban Urban 120 530 880 TWO 020 390 1480 Three or More 335 420 Total 1005 230 470 840 3200 If there is no relationship between Number of cars and Community Type, the expected number of suburban residences with two cars is: 587.375 684.325. 651.445. 710.765.

Answer 1

The expected number of suburban residences with two cars is

= (Row Total × Column Total)/(Grand Total)

= (1270 × 1480)/3200

= 587.375