Determine the sampling method described in each of these studies. stratified sample systematic sample simple random sample cluster sample convenience sample # A random group of workers in each of five random office towers downtown are asked their opinions about city development. #: A researcher surveys the political preference of the first 10 people who enter the room. #: A computer selects 100 random phone numbers from a contact list to dial for a consumer research survey. :: A teacher divides a class into boys and girls and asks a few students in each group what activities they would like to do during recess. #: An usher asks every fifth person in line their drink preference to prepare the kitchen. #: A company sends a survey to every employee and expects a 100% return rate