Wes and Libbie each surveyed groups of students to find whether they would prefer going to an art museum or to the zoo. Wes foun
d that % of the students he surveyed wanted to go to the zoo. Libbie found that 60% of the students she surveyed wanted to go to the zoo. When the teachers surveyed all the students, they found that 62% wanted to go to the zoo. Which of these most likely explains why Wes's data were so different than the other two surveys?
