A survey asked independent random samples of drivers from Northern states and Southern states about the importance of owning a car with 4-wheel drive (4WD). Of the 1,800 Northerners, 57% said 4WD was important, compared with the 32% of the 1,500 Southerners surveyed.
The random condition because the data comes from .:is met
The random condition because the data comes from .:two independent random samples