Noah wants to predict who will be selected as the sixth-grade treasurer for student council. which of the following groups should noah survey to make his prediction?
the first 100 students from an alphabetical list of the entire school
the first 100 students from an alphabetical list of sixth graders
one hundred random students from the entire school
one hundred random students from the sixth grade

D. One hundred random students from the sixth grade is the best choice given!

Reasons why the other answers and not good choices.
A. The first 100 students from an alphabetical list of the entire school, is incorrect because his only concern is the 6th graders, by including everyone he would negatively skew the data.
B. The first 100 students from an alphabetical list of sixth graders, is incorrect because its unfair to those with names starting later in the alphabet.
C. One hundred random students from the entire school is is better but still incorrect because his only concern is the 6th graders, by including everyone he would again negatively skew the data.