By tradition when does the presidential campaign begin ?

What effect did the lawpassed by parlament have on the .

Why was george washington being elected unanimously important? it indicated how much respect and popularity he had gained. it paved the way for other unanimous elections. it meant that he would be president forever. it meant that he voted for himself.

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