Maria wanted to know if many sutdents had a family member with diabetes. she wanted to know about the entire school. she collected a student roster from the office and used the random number generator on her calculator to select one of the first 100 students on the list. maria then selected every 100th student on the list after this initial student for her sample. the calculator generated the number 84. what kind of sampling is she using?

simple random
cluster
systematic
stratified
convenience