STATISTICS PORTAGE CNSL 503 STUDY GUIDE 1 2026 TEST PAPER QUESTIONS AND SOLUTIONS GRADED A+

STATISTICS PORTAGE CNSL 503 STUDY
GUIDE 1 2026 TEST PAPER QUESTIONS
AND SOLUTIONS GRADED A+

●● Subjects.
Answer: entities that we measure in a study


●● Variable.
Answer: characteristic observed for subjects in a study


●● Population.
Answer: Set of ALL subjects of interest


●● Parameter.
Answer: Numerical summary of a population (usually unknown)


●● Sample.
Answer: Set of subjects for which we have data


●● Statistic.
Answer: Numerical summary of a sample

, ●● Judgement sample.
Answer: collect a sample that an "expert" thinks is
representative of the population


●● Convenience sample.
Answer: collect a sample that is easiest to access


●● volunteer sample.
Answer: subjects choose to participate in the study


●● census sample.
Answer: (attempt) to collect data from every individual
population


●● Systematic Sample.
Answer: uses a systematic method (such as, every 10th
person) to select the sample


●● Simple random sample (SRS).
Answer: sample is chosen in such a
way that every subject is equally likely to be selected for the study