I want to study jury decision making in Miami, and I want to have a representative sample for a mock jury study. I look at the demographic make-up of Miami-Dade county and obtain a pool of participants that matches it perfectly in all categories (gender, race, age, etc.). What sampling technique did I use

Proportionate Sampling.

Explanation:

Proportionate sampling refers to a sampling technique that is used where the sample consists of many subgroups that are very different in size. The number of participants in each subgroup is assessed by their number compared to the total population. In this sampling process, the investigator splits a finite sample of the population into subgroups and then applies random sampling techniques to each population group.

the 5th amendment is about the justice system

explanation:

there is no double jeopardy

due process

grand jury

and that you can’t incriminate yourself

it is due to the halo effect as the impression of the boy created earlier.on the mind of the principle affected his decision