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MAT 150 FINAL EXAMINATION TEST 2026 QUESTIONS AND SOLUTIONS COMPREHENSIVE REVIEW SHEET

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MAT 150 FINAL EXAMINATION TEST 2026 QUESTIONS AND SOLUTIONS COMPREHENSIVE REVIEW SHEET

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MAT 150 FINAL EXAMINATION TEST 2026
QUESTIONS AND SOLUTIONS
COMPREHENSIVE REVIEW SHEET

◉ Population. Answer: The entire group being studied


◉ Sample. Answer: A subset of the population


◉ Parameter. Answer: A numerical value describing a population


◉ Statistic. Answer: A numerical value describing a sample


◉ Descriptive Statistics. Answer: Methods for summarizing and
displaying data (tables, graphs, averages)


◉ Inferential Statistics. Answer: Methods that use sample data to
draw conclusions about a population


◉ Observational Study. Answer: Researcher observes without
assigning treatments; shows association, not causation

, ◉ Experimental Study. Answer: Researcher assigns treatments; can
show cause-and-effect


◉ Placebo. Answer: A fake treatment with no active effect


◉ Control Group. Answer: Group that does not receive the
experimental treatment


◉ Simple Random Sampling. Answer: Every individual has an equal
chance of being selected


◉ Systematic Sampling. Answer: Select every nth individual


◉ Stratified Sampling. Answer: Divide population into subgroups
and sample from each


◉ Cluster Sampling. Answer: Randomly select entire groups and
study everyone in them


◉ Bias. Answer: A systematic error that skews results


◉ Variable. Answer: A characteristic that can change or vary
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