Recognized the importance of investigating what factors underpinned why certain people are victims, just as criminology attempts to identify those factors that produce criminality.

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