Asked by Steve

Identify the sampling,method.

You want to determine the number of text messages students at your school send in a month. You go to the cafeteria and ask every 4th student that walks in.

a- random
b- systemic
c- stratified
d-m none of these

My answer is none of the these because it's biased for only students that used the cafeteria.
Answered by Ms. Sue
However, what if you assume that students who bring their lunch or just want to hang out use the cafeteria?

Answered by Steve
so are you saying it could be stratified?
Answered by Ms. Sue
It would be stratified if only one grade used the cafeteria at that time.