AAA car-buying service surveyed 1000 households to determine the number of operating vehicles owned by residents at the same address. Use the results below to estimate the percentage of households that own 

(a) One or less vehicles,

(b) One or two vehicles, and

(c) More than three vehicles.

Number of Cars, C ............................... Number of Households
0 ........................................................................... 120
1 ........................................................................... 560
2 ........................................................................... 260
3 ............................................................................. 32
4 ............................................................................. 22
5 or more  ............................................................... 6