A 2007 survey of 980 American drivers concluded that 38% of the driving population would be willing to pay higher gas prices to protect the environment. Which of the following best describes what is meant by the poll having a margin of error of 3%?
a. Three percent of those surveyed refused to participate in the poll.
b. It would not be unexpected for 3 percent of the population to readily agree to the higher gas price.
c. Between 343 and 402 of the 980 drivers surveyed responded that they would be willing to pay higher gas prices to protect the environment.
d. If a similar survey of 980 American drivers was taken weekly, a 3% change in each week's results would not be unexpected.
e. If is likely that between 35% and 41% percent of the driving population would be willing to pay higher gas prices to protect the environment.