QMI1500 – Elementary Quantitative Methods (UNISA)
Fall Semester 2025–2026 | Comprehensive Statistics,
Probability & Data Analysis Exam Prep | 200+ Verified
Practice Questions with Correct Answers & Detailed
Rationales | Complete Test Bank & Study Guide for
UNISA Business, Economics & Management Students
QUESTION: 1:
What is the primary purpose of quantitative methods in research?
A) To analyze qualitative data
B) To analyze numerical data to identify patterns and relationships
C) To collect subjective opinions
D) To conduct interviews
RATIONALE:Quantitative methods focus on numerical data analysis to derive
conclusions.
QUESTION: 2:
What is a variable in quantitative research?
A) A fixed outcome
B) A characteristic or attribute that can take on different values
C) A constant measurement
D) A qualitative description
RATIONALE:Variables are essential for conducting statistical analyses and experiments.
QUESTION: 3:
What is the difference between independent and dependent variables?
A) Independent variables are manipulated, while dependent variables are measured.
B) Independent variables are controlled, while dependent variables are affected by
changes.
C) They are the same.
D) Independent variables are qualitative, while dependent variables are quantitative.
RATIONALE:Understanding this distinction is crucial for designing experiments and
interpreting results.
QUESTION: 4:
,What is a hypothesis?
A) A proven theory
B) A testable statement about the relationship between two or more variables
,C) A qualitative description
D) An opinion
RATIONALE:Hypotheses guide the research process and help in testing theories.
QUESTION: 5:
What does it mean to operationalize a variable?
A) To define it qualitatively
B) To define it in measurable terms for research purposes
C) To eliminate it from the study
D) To simplify it
RATIONALE:Operationalizing variables ensures clarity and measurability in research.
QUESTION: 6:
What is a sample in research?
A) The entire population
B) A subset of individuals selected from a larger population for study
C) A theoretical concept
D) A qualitative description
RATIONALE:Samples allow researchers to draw conclusions about populations without
studying everyone.
QUESTION: 7:
What is the purpose of descriptive statistics?
A) To make predictions
B) To summarize and describe the main features of a dataset
C) To test hypotheses
D) To analyze relationships
RATIONALE:Descriptive statistics provide a clear overview of data characteristics.
QUESTION: 8:
Which measure of central tendency is most affected by outliers?
A) Median
, B) Mean
C) Mode
D) Standard deviation
Fall Semester 2025–2026 | Comprehensive Statistics,
Probability & Data Analysis Exam Prep | 200+ Verified
Practice Questions with Correct Answers & Detailed
Rationales | Complete Test Bank & Study Guide for
UNISA Business, Economics & Management Students
QUESTION: 1:
What is the primary purpose of quantitative methods in research?
A) To analyze qualitative data
B) To analyze numerical data to identify patterns and relationships
C) To collect subjective opinions
D) To conduct interviews
RATIONALE:Quantitative methods focus on numerical data analysis to derive
conclusions.
QUESTION: 2:
What is a variable in quantitative research?
A) A fixed outcome
B) A characteristic or attribute that can take on different values
C) A constant measurement
D) A qualitative description
RATIONALE:Variables are essential for conducting statistical analyses and experiments.
QUESTION: 3:
What is the difference between independent and dependent variables?
A) Independent variables are manipulated, while dependent variables are measured.
B) Independent variables are controlled, while dependent variables are affected by
changes.
C) They are the same.
D) Independent variables are qualitative, while dependent variables are quantitative.
RATIONALE:Understanding this distinction is crucial for designing experiments and
interpreting results.
QUESTION: 4:
,What is a hypothesis?
A) A proven theory
B) A testable statement about the relationship between two or more variables
,C) A qualitative description
D) An opinion
RATIONALE:Hypotheses guide the research process and help in testing theories.
QUESTION: 5:
What does it mean to operationalize a variable?
A) To define it qualitatively
B) To define it in measurable terms for research purposes
C) To eliminate it from the study
D) To simplify it
RATIONALE:Operationalizing variables ensures clarity and measurability in research.
QUESTION: 6:
What is a sample in research?
A) The entire population
B) A subset of individuals selected from a larger population for study
C) A theoretical concept
D) A qualitative description
RATIONALE:Samples allow researchers to draw conclusions about populations without
studying everyone.
QUESTION: 7:
What is the purpose of descriptive statistics?
A) To make predictions
B) To summarize and describe the main features of a dataset
C) To test hypotheses
D) To analyze relationships
RATIONALE:Descriptive statistics provide a clear overview of data characteristics.
QUESTION: 8:
Which measure of central tendency is most affected by outliers?
A) Median
, B) Mean
C) Mode
D) Standard deviation
