Dr. Slocum wants to conduct a study that investigates nicotine addiction in teenagers. Teenagers who are identified as addicted to cigarettes represent the ; those teens who participate in the study represent the .

Teenagers who are identified as addicted to cigarettes represent the "POSITIVE RESULT SAMPLE", while those teens who participate in the study represent the "RESULT SAMPLE".

Explanation: In a research, the variables used to produce a result are called samples. A research result comprise of positive and negative samples.

Those samples that test positive to our research are called the positive samples, while those that do not test positive are called the negative sample, all the samples that participated in the research, bother the positive and negative are called the result samples.

All the teens that participated in the event are called the result samples, because they help the research to produce a balanced result. While those teens that are addicted to nicotine are the positive samples, because it helped the research to show a different from other samples.

the answer is a wheel