A teacher has 36 students who were randomly assigned to 6 rows of 6 desks. She wants to survey the students about the homework policy. Which of the following uses cluster sampling? Roll a fair number cube. Use the number rolled to pick a row of students. Survey every student in that row.
List the students according to their grade in the class. Survey one A student, one B student, etc.
For each row, flip a coin. If it is heads, survey all the boys in that row. If it is tails, survey all the girls in that row.
Select a student by rolling a fair number cube twice. The first roll gives the row number, and the second roll gives the seat number. Then repeat. Also if you look at my profile there is more of these type of questions if you want easy points