You Want to Draw a Sample of the Employees at a Large

Multiple Choice

You want to draw a sample of the employees at a large university ensuring that in your sample you have people represented from all personnel categories: administrators,faculty,secretarial staff,cleaning staff,mail room staff,technicians,students,etc.You want to use a probability sample.Which type of probability sample would be best for your purposes?

A) cluster sample
B) stratified sample
C) quota sample
D) simple random sample
E) snowball sample