If you collect samples by dividing the population into subpopulations (often based on demographics) and then randomly sampling within each subpopulation, you are doing stratified sampling cluster sampling simple random sampling convenience sampling

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

What is an alternate exterior angle

Which of the following can be used to explain a statement in a geometric proof?