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Exam (elaborations)

Statistics 101 Final Exam With Complete Solutions

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  • Statistics 101
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  • Statistics 101

Statistics 101 Final Exam With Complete Solutions

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  • September 17, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Statistics 101
  • Statistics 101
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Statistics 101 Final Exam With Complete
Solutions

descriptive statistics Answer: the collection, organization, summarization, and presentation of data



inferential statistics Answer: making inferences (conclusions and predictions) based on the data and
any tests run on the data; generalizing from samples to population



qualitative variable Answer: can be placed into distinct categories, according to some characteristic
or attribute



quantitative variable Answer: are numerical and can be ordered or ranked



discrete variable Answer: can be assigned values such as 0, 1, 2, 3 and are said to be countable



continuous variable Answer: can assume an infinite number of values between any two specific
values; obtained by measuring; often include fractions and decimals.



random sampling Answer: number each subject of the population; randomly select numbers to
create a sample



systematic sampling Answer: number each subject in the population; randomly select the first
subject; select every k-th subject after that



stratified sampling Answer: divide the population into groups; randomly select subjects from each
group

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