In 1961, the U. S. Supreme Court ruled that illegally obtained evidence could not be used in state courts. Which of these constitutional rights is protected by this ruling?

-due process
-majority rule
-checks and balances
-separation of power

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