Teachers are interested in knowing what study techniques their students are utilizing. The researchers randomly select every 10th student that walks into class. Simple Random Sample (SRS)

Stratified Sample

O Systematic Sample

O Cluster Sample

If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be a. lower than the mercury in the vessel, and shaped like the inside of a bowl. b. higher than the mercury in the vessel, and shaped like the inside of a bowl. c. lower than the mercury in the vessel, and shaped like the outside of an umbrella. d. higher than the mercury in the vessel, and shaped like the outside of an umbrella.