The city of Valley Grove is considering shortening the length of the school day. The school board hired Mr. Kent to do a survey to help them decide what to do.

a. Mr. Kent interviewed 54 students as they left the school. Is this a random sample? Explain.

b. Mr. Kent used this survey question: “Should the lengthy school day, which now extends for 7.5 hours, be shortened to 6 hours?” Is this question biased or fair? Explain.

c. Of the 54 responses he received, 51 were “yes.” The rest were “no.” What percent of the responses were “no”?