Question: Car colors? We have heard that more silver cars are sold than any other color. (This no doubt requires allowing "silver" to include certain shades of "gray.") What percentage of the cars driven by students at your school are silver? Answer this question by collecting data and giving a confidence interval for the proportion of silver cars. You might collect data by questioning a sample of students or by looking at cars in student parking areas. In your discussion, explain how you attempted to get data that are close to an SRS of student cars.