On the last day of school, all of the students in Jordan and Dara's middle school
compete in a long jump contest. Jordan surveys a random sample from all
students in the school about how far they can long jump. The mean of her sample
data is 11 ft 6 in.
Dara surveys a random sample of Grade 8 students in the school. The mean of his
sample data is 12 ft 2 in.
a. Whose answer do you think is more likely to be representative of all the
students in the school? Explain.
b. Justify your answer in a different way.