BSA 119 – BUSINESS STATISTICS I
Practice Examination Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
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1. What is the main purpose of statistics?
A. To collect only raw data
B. To ignore numerical data
C. To make decisions using data
D. To eliminate uncertainty completely
Answer: C. To make decisions using data
Rationale: Statistics is primarily used to collect, organize, analyze, and
interpret data to support decision-making processes.
2. Which of the following is a qualitative variable?
A. Height
B. Weight
C. Gender
D. Temperature
Answer: C. Gender
,Rationale: Gender is descriptive and non-numeric, making it a
qualitative variable.
3. Data collected from a census is called:
A. Sample data
B. Primary data
C. Secondary data
D. Inferential data
Answer: B. Primary data
Rationale: Census involves collecting data directly from every member
of the population, making it primary data.
4. The measure of central tendency that is most affected by extreme
values is:
A. Median
B. Mode
C. Mean
D. Range
Answer: C. Mean
Rationale: The mean is sensitive to extreme values because it includes
all data points in its calculation.
5. The median of a data set is:
A. The most frequent value
B. The middle value when data is ordered
,C. The difference between highest and lowest
D. The average of all values
Answer: B. The middle value when data is ordered
Rationale: The median divides ordered data into two equal halves.
6. The mode refers to:
A. Middle value
B. Average value
C. Most frequently occurring value
D. Difference between values
Answer: C. Most frequently occurring value
Rationale: Mode identifies the value that appears most often in a data
set.
7. Which scale of measurement has a true zero?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Answer: D. Ratio
Rationale: Ratio scales have a meaningful zero point indicating
absence of the quantity.
8. A sample is best described as:
, A. Entire population
B. A subset of the population
C. A fixed number of variables
D. A type of graph
Answer: B. A subset of the population
Rationale: A sample is a portion selected from a population for
analysis.
9. What is probability?
A. Certainty of an event
B. Measurement error
C. Likelihood of an event occurring
D. Data classification method
Answer: C. Likelihood of an event occurring
Rationale: Probability measures how likely an event is to happen.
10. A bar chart is used to represent:
A. Continuous data
B. Categorical data
C. Time series only
D. Probability distributions
Answer: B. Categorical data
Rationale: Bar charts compare different categories using bars.
11. The range is calculated as:
Practice Examination Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the main purpose of statistics?
A. To collect only raw data
B. To ignore numerical data
C. To make decisions using data
D. To eliminate uncertainty completely
Answer: C. To make decisions using data
Rationale: Statistics is primarily used to collect, organize, analyze, and
interpret data to support decision-making processes.
2. Which of the following is a qualitative variable?
A. Height
B. Weight
C. Gender
D. Temperature
Answer: C. Gender
,Rationale: Gender is descriptive and non-numeric, making it a
qualitative variable.
3. Data collected from a census is called:
A. Sample data
B. Primary data
C. Secondary data
D. Inferential data
Answer: B. Primary data
Rationale: Census involves collecting data directly from every member
of the population, making it primary data.
4. The measure of central tendency that is most affected by extreme
values is:
A. Median
B. Mode
C. Mean
D. Range
Answer: C. Mean
Rationale: The mean is sensitive to extreme values because it includes
all data points in its calculation.
5. The median of a data set is:
A. The most frequent value
B. The middle value when data is ordered
,C. The difference between highest and lowest
D. The average of all values
Answer: B. The middle value when data is ordered
Rationale: The median divides ordered data into two equal halves.
6. The mode refers to:
A. Middle value
B. Average value
C. Most frequently occurring value
D. Difference between values
Answer: C. Most frequently occurring value
Rationale: Mode identifies the value that appears most often in a data
set.
7. Which scale of measurement has a true zero?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Answer: D. Ratio
Rationale: Ratio scales have a meaningful zero point indicating
absence of the quantity.
8. A sample is best described as:
, A. Entire population
B. A subset of the population
C. A fixed number of variables
D. A type of graph
Answer: B. A subset of the population
Rationale: A sample is a portion selected from a population for
analysis.
9. What is probability?
A. Certainty of an event
B. Measurement error
C. Likelihood of an event occurring
D. Data classification method
Answer: C. Likelihood of an event occurring
Rationale: Probability measures how likely an event is to happen.
10. A bar chart is used to represent:
A. Continuous data
B. Categorical data
C. Time series only
D. Probability distributions
Answer: B. Categorical data
Rationale: Bar charts compare different categories using bars.
11. The range is calculated as:
