What did spanish explorers believe would most "” american indians? (a) if american indians were more proper and refined, like the english (b) if american indians built the missions (c) if american indians resisted assimilation (d) if american indians looked, talked, and worshipped like the spanish

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