STATISTICS FINAL EXAM (2026–2027)
Question 1
What is statistics?
A. The study of stars
B. The science of collecting, organizing, analyzing, and interpreting data
C. The study of economics
D. The science of computers
Correct Answer: B
Rationale: Statistics is the branch of mathematics concerned with collecting, organizing, analyzing,
presenting, and interpreting data to support decision-making and research.
Question 2
A characteristic measured for every member of a population is called a:
A. Sample
B. Variable
C. Parameter
D. Statistic
Correct Answer: C
Rationale: A parameter describes a population, whereas a statistic describes a sample.
Question 3
Which measure represents the average value of a dataset?
A. Range
B. Variance
C. Mean
D. Mode
Correct Answer: C
Rationale: The mean is calculated by summing all observations and dividing by the number of
observations.
Question 4
The middle value in an ordered dataset is the:
A. Mean
B. Median
,C. Range
D. Variance
Correct Answer: B
Rationale: The median divides the dataset into two equal halves after arranging the values in order.
Question 5
The most frequently occurring value in a dataset is the:
A. Mean
B. Median
C. Mode
D. Range
Correct Answer: C
Rationale: The mode identifies the observation that appears most often.
Question 6
Which measure shows the spread between the highest and lowest values?
A. Mean
B. Median
C. Standard Deviation
D. Range
Correct Answer: D
Rationale: Range equals maximum value minus minimum value.
Question 7
A subset of a population is called:
A. Census
B. Variable
C. Sample
D. Parameter
Correct Answer: C
Rationale: A sample consists of selected members from a larger population.
Question 8
A complete count of every member of a population is called:
, A. Survey
B. Census
C. Sample
D. Experiment
Correct Answer: B
Rationale: A census gathers information from every population member.
Question 9
Which scale of measurement categorizes data without order?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: A
Rationale: Nominal data classify observations into categories with no ranking.
Question 10
Which scale ranks observations?
A. Ratio
B. Nominal
C. Ordinal
D. Interval
Correct Answer: C
Rationale: Ordinal scales provide categories with meaningful order.
Question 11
Temperature measured in Celsius is an example of:
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: C
Rationale: Interval scales have equal intervals but no true zero point.
Question 12
Question 1
What is statistics?
A. The study of stars
B. The science of collecting, organizing, analyzing, and interpreting data
C. The study of economics
D. The science of computers
Correct Answer: B
Rationale: Statistics is the branch of mathematics concerned with collecting, organizing, analyzing,
presenting, and interpreting data to support decision-making and research.
Question 2
A characteristic measured for every member of a population is called a:
A. Sample
B. Variable
C. Parameter
D. Statistic
Correct Answer: C
Rationale: A parameter describes a population, whereas a statistic describes a sample.
Question 3
Which measure represents the average value of a dataset?
A. Range
B. Variance
C. Mean
D. Mode
Correct Answer: C
Rationale: The mean is calculated by summing all observations and dividing by the number of
observations.
Question 4
The middle value in an ordered dataset is the:
A. Mean
B. Median
,C. Range
D. Variance
Correct Answer: B
Rationale: The median divides the dataset into two equal halves after arranging the values in order.
Question 5
The most frequently occurring value in a dataset is the:
A. Mean
B. Median
C. Mode
D. Range
Correct Answer: C
Rationale: The mode identifies the observation that appears most often.
Question 6
Which measure shows the spread between the highest and lowest values?
A. Mean
B. Median
C. Standard Deviation
D. Range
Correct Answer: D
Rationale: Range equals maximum value minus minimum value.
Question 7
A subset of a population is called:
A. Census
B. Variable
C. Sample
D. Parameter
Correct Answer: C
Rationale: A sample consists of selected members from a larger population.
Question 8
A complete count of every member of a population is called:
, A. Survey
B. Census
C. Sample
D. Experiment
Correct Answer: B
Rationale: A census gathers information from every population member.
Question 9
Which scale of measurement categorizes data without order?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: A
Rationale: Nominal data classify observations into categories with no ranking.
Question 10
Which scale ranks observations?
A. Ratio
B. Nominal
C. Ordinal
D. Interval
Correct Answer: C
Rationale: Ordinal scales provide categories with meaningful order.
Question 11
Temperature measured in Celsius is an example of:
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: C
Rationale: Interval scales have equal intervals but no true zero point.
Question 12
