What is material and non material culture?

For a study comparing leisure activities of physical education students with those of other students, a researcher has randomly selected a ten percent sample of physical education students and one percent sample of non-physical education students for a list of students. what kind of sampling technique is this?

What is the bottle's speed, as a percentage of the ball's incoming speed?

Some studies have found that what percentage of students have cheated in some form? a. 10% b. 25% c. 45% d. 75%