STA1610
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their own research and seek advice from their instructors or academic advisors for specific assignment guidelines.
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regarding plagiarism, citation, and referencing. These study notes should be used as learning tools and sources of
inspiration. Any direct reproduction of the content without proper citation and acknowledgment may be considered
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Limited Liability: The seller shall not be liable for any direct or indirect damages, losses, or consequences arising from
the use of these notes. This includes, but is not limited to, poor academic performance, penalties, or any other negative
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,STA1610 OCTOBER NOVEMBER 2025 EXAM MEMO
1) Complete the sentence.
__________ is a statistical method that draws conclusions about the __________
based on computed __________ from the __________.
A. sample, inferential statistics, parameter, population
B. population, sample, descriptive statistics, parameter
C. inferential statistics, population, statistics, sample
D. descriptive statistics, population, statistics, sample
Explanation: Inferential statistics uses sample statistics to make conclusions about
a population.
2) Which of the following is NOT a goal of descriptive statistics?
A. Summarising data
B. Displaying aspects of the collected data
C. Reporting numerical findings
D. Estimating characteristics of the population
E. Presenting data in tables, charts, and summary statistics
Explanation: Estimating population characteristics is inferential, not descriptive.
3) Which statement is incorrect with regard to a statistic?
A. A sample standard deviation is a statistic.
B. A statistic is an estimate of a population parameter.
C. A statistic is a summary measure calculated from a sample.
D. A population mean is a statistic.
E. A statistic represents a property of a sample.
Explanation: A population mean is a parameter, not a statistic.
,4) A school records the number of late arrivals per learner per week. This
variable is:
A. Qualitative nominal
B. Qualitative ordinal
C. Quantitative continuous
D. Quantitative discrete
E. Ratio but not numerical
Explanation: It is a count, so it is discrete.
5) Which variable is NOT categorical?
A. Gender
B. Internet provider
C. Height
D. Marital status
E. Defective vs non-defective
Explanation: Height is numerical (continuous).
6) A summary measure calculated from a sample to describe a population
characteristic is called a:
A. Parameter
B. Population
C. Census
D. Statistic
E. Experiment
Explanation: A statistic is computed from a sample.
7) Which statement is incorrect about categorical data?
, A. It can be nominal or ordinal.
B. Frequencies can be counted.
C. The mode can be found.
D. The mean can be calculated.
E. It can be summarised in a frequency table.
Explanation: The mean is not meaningful for categorical labels.
8) A teacher ranks learners as 1st, 2nd, 3rd in a race. The scale of
measurement is:
A. Nominal
B. Ordinal
C. Interval
D. Ratio
E. Continuous
Explanation: Rankings have order but unequal gaps.
9) Which statement is correct?
A. Gender and religion are ordinal variables.
B. Money spent in a mall is always discrete.
C. Number of girls with blue eyes is discrete.
D. Position finished in a race is continuous.
E. Number of wrong turns is continuous.
Explanation: Counting girls gives a discrete number.
10) Two graphical techniques appropriate for nominal data are:
A. Bar chart and histogram
B. Pie chart and ogive
C. Bar chart and pie chart
EXAM PACK
Recent exam questions and answers
Summarised study notes
Exam tips and guidelines
+27 81 278 3372
DISCLAIMER & TERMS OF USE
Educational Aid: These study notes are intended to be used as educational resources and should not be seen as a
replacement for individual research, critical analysis, or professional consultation. Students are encouraged to perform
their own research and seek advice from their instructors or academic advisors for specific assignment guidelines.
Personal Responsibility: While every effort has been made to ensure the accuracy and reliability of the information in
these study notes, the seller does not guarantee the completeness or correctness of all content. The buyer is
responsible for verifying the accuracy of the information and exercising their own judgment when applying it to their
assignments.
Academic Integrity: It is essential for students to maintain academic integrity and follow their institution's policies
regarding plagiarism, citation, and referencing. These study notes should be used as learning tools and sources of
inspiration. Any direct reproduction of the content without proper citation and acknowledgment may be considered
academic misconduct.
Limited Liability: The seller shall not be liable for any direct or indirect damages, losses, or consequences arising from
the use of these notes. This includes, but is not limited to, poor academic performance, penalties, or any other negative
consequences resulting from the application or misuse of the information provided.
,STA1610 OCTOBER NOVEMBER 2025 EXAM MEMO
1) Complete the sentence.
__________ is a statistical method that draws conclusions about the __________
based on computed __________ from the __________.
A. sample, inferential statistics, parameter, population
B. population, sample, descriptive statistics, parameter
C. inferential statistics, population, statistics, sample
D. descriptive statistics, population, statistics, sample
Explanation: Inferential statistics uses sample statistics to make conclusions about
a population.
2) Which of the following is NOT a goal of descriptive statistics?
A. Summarising data
B. Displaying aspects of the collected data
C. Reporting numerical findings
D. Estimating characteristics of the population
E. Presenting data in tables, charts, and summary statistics
Explanation: Estimating population characteristics is inferential, not descriptive.
3) Which statement is incorrect with regard to a statistic?
A. A sample standard deviation is a statistic.
B. A statistic is an estimate of a population parameter.
C. A statistic is a summary measure calculated from a sample.
D. A population mean is a statistic.
E. A statistic represents a property of a sample.
Explanation: A population mean is a parameter, not a statistic.
,4) A school records the number of late arrivals per learner per week. This
variable is:
A. Qualitative nominal
B. Qualitative ordinal
C. Quantitative continuous
D. Quantitative discrete
E. Ratio but not numerical
Explanation: It is a count, so it is discrete.
5) Which variable is NOT categorical?
A. Gender
B. Internet provider
C. Height
D. Marital status
E. Defective vs non-defective
Explanation: Height is numerical (continuous).
6) A summary measure calculated from a sample to describe a population
characteristic is called a:
A. Parameter
B. Population
C. Census
D. Statistic
E. Experiment
Explanation: A statistic is computed from a sample.
7) Which statement is incorrect about categorical data?
, A. It can be nominal or ordinal.
B. Frequencies can be counted.
C. The mode can be found.
D. The mean can be calculated.
E. It can be summarised in a frequency table.
Explanation: The mean is not meaningful for categorical labels.
8) A teacher ranks learners as 1st, 2nd, 3rd in a race. The scale of
measurement is:
A. Nominal
B. Ordinal
C. Interval
D. Ratio
E. Continuous
Explanation: Rankings have order but unequal gaps.
9) Which statement is correct?
A. Gender and religion are ordinal variables.
B. Money spent in a mall is always discrete.
C. Number of girls with blue eyes is discrete.
D. Position finished in a race is continuous.
E. Number of wrong turns is continuous.
Explanation: Counting girls gives a discrete number.
10) Two graphical techniques appropriate for nominal data are:
A. Bar chart and histogram
B. Pie chart and ogive
C. Bar chart and pie chart
