During the neolithic revolution productuion of a food surplus led directly to

Ais a group of people living and working under a set of rules and traditions.

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

Which of the following variables has the strongest influence on the variations found in american family life? a.race and ethnicity b.religious affiliation c.social class and culture d.education and occupation