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STT 215 Final Exam Vocab Review Questions with
Answers (100% Correct Answers)
Simpson's Paradox Answer: When the direction of the association
between two variables switches direction after the introduction of a
third variable
Quantitative Variable Answer: Observations that take on numerical
values that represent different magnitudes of the variable
Statistic Answer: A numerical summary of a sample taken from the
population
Lurking Variable Answer: An often-unobserved influence that affects
the association between the primary variables of interest
Margin of Error Answer: A measure of variability of a statistic from
one random sample to another
Correlation Coefficient Answer: Describes the strength and direction
of the linear relationship between two variables
Categorical Variable Answer: Each observation belongs to one of a set
of distinct classifications
© 2025 All rights reserved
STT 215 Final Exam Vocab Review Questions with
Answers (100% Correct Answers)
Simpson's Paradox Answer: When the direction of the association
between two variables switches direction after the introduction of a
third variable
Quantitative Variable Answer: Observations that take on numerical
values that represent different magnitudes of the variable
Statistic Answer: A numerical summary of a sample taken from the
population
Lurking Variable Answer: An often-unobserved influence that affects
the association between the primary variables of interest
Margin of Error Answer: A measure of variability of a statistic from
one random sample to another
Correlation Coefficient Answer: Describes the strength and direction
of the linear relationship between two variables
Categorical Variable Answer: Each observation belongs to one of a set
of distinct classifications
© 2025 All rights reserved
