Why does the executive office of the president include press and communications staff? The president uses mass media to speak to Congress.
The president uses mass media to gain support for policies.
The president uses mass media to issue executive orders.
The president uses mass media to speak to other countries

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