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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

What activity is not one of the primary ways political parties shape public policy

Study this form which is allowed in and her knee name thomas as a moto to temporarily leave and interment camp what is the most likely purpose for including the statement at the top of