STA1610
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conduct their own extensive research and consult with their instructors or academic advisors for specific
assignment requirements.
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,STA1610 - Introduction to Statistics
Questions and Answers
Study Unit 1
1. Complete the following sentence: is a statistical methods 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
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. Presentation of the data in the form of tables, charts and summary statistics
3. Which one of the following statements 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. {A population mean is a parameter}
E. A statistic represents a property of a sample.
4. Which one of the following statements is incorrect?
1. A variable is a characteristic of an item or individual being measured
2. A sample is a portion of a population selected for analysis
3. In a pie chart, the size of segments varies according to the percentage in each category
4. An histogram describes better qualitative data than a bar chart {Histogram is used for Quantitative data}
5. The mode is the most frequent observation in a data set
5. What is a summary measure that is calculated from a sample to describe a characteristic of a population?
(1) Boxplot.
(2) Data.
(3) Parameter.
(4) Population.
(5) Statistic.
6. Which one of the following statements is incorrect with regard to qualitative or categorical data?
(1) Categorical data is measured on an ordinal or nominal scale.
(2) The frequency or count of each element can be determined.
(3) The mode can be determined.
(4) The mean can be calculated.
(5) None of the above.
7. Which one of the following statements is incorrect?
(1) A population is a complete set of objects in the study while a sample is a subset of a population.
(2) A statistic is a property of a population while a parameter is a property of a sample.
(3) Data from a sample are in a form of variables, which can either be numeric or categorical.
(4) Quantitative data are numeric and can either be discrete or continuous.
(5) Qualitative data are categorical and uses labels to identify attributes.
This study source was downloaded by 100000894283260 from CourseHero.com on 01-20-2025 14:34:54 GMT -06:00
https://www.coursehero.com/file/226493071/STA1610-Study-Unit-1-QApdf/
, 8. Which one of the following variables is not categorical?
A. Gender of a person
B. Name of internet provider
C. Height of a person
D. Marital Status of a person
E. Classifying an object as defective or non-defective
9. Which one of the following statements is correct?
1. Gender, marital status and religion are examples of qualitative ordinal variables
2. The amount of money a person spends in a shopping mall is a discrete variable
3. The number of girls with blue eyes is a discrete variable
4. The position one finishes in a race is a discrete variable.
5. The number of times a mouse makes a wrong turn in a laboratory represents a continuous variable
10. Which one of the following statements is incorrect with regard to variables and their scale of measurements?
A. Quantitative discrete variables result from counting attributes of an element.
B. Quantitative continuous variables result from measuring attributes of an element.
C. The mean and the median cannot be determined for a nominal scale of measurement.
D. Ordinal scale of measurement is a higher level of measurement that interval scale
This study source was downloaded by 100000894283260 from CourseHero.com on 01-20-2025 14:34:54 GMT -06:00
https://www.coursehero.com/file/226493071/STA1610-Study-Unit-1-QApdf/
, STA1610 Study Unit 2&3 Q&A
1. Which one of the following statements is incorrect with regard to variables and their scale of
measurements?
A. Quantitative discrete variables result from counting attributes of an element.
B. Quantitative continuous variables result from measuring attributes of an element.
C. The mean and the median cannot be determined for a nominal scale of measurement.
D. Ordinal scale of measurement is a higher level of measurement that interval scale
2. The two graphical techniques that can be used to represent nominal data are
1. Bar chart and histogram
2. Pie chart and ogive
3. Bar chart and pie chart
4. Histogram and ogive
5. Pie chart and histogram
3. Consider the following scores: 5 3 2 13 2
The outlier score is:
1.5
2.2
3. 2 and 5
4. 2 and 13
5. 13
4. Given the following symbols
Α. μ – Population mean
B. S – Sample Standard deviation
C. X̅ - Sample mean
D. σ – Population Standard deviation
Identify the symbols that represents a parameter as a measure of a population
1. Only A
2. A and D
3. B and C
4. C and D
5. A and C
5. The following data give the starting admission price (in R) for one-day tickets to 10 theme parks
58 63 41 42 29 50 62 43 40 40
Which of the following statements is correct?
1 The mean X = 46 and the standard deviation S = 11.01
2 The mean X = 42.8 and the standard deviation S = 10.10
3 The mean X = 46 8 and the standard deviation S = 11 10
4 The mean X = 46 and the standard deviation S = 10 53
5 The mean X = 46.8 and the standard deviation S = 123 29
6. The ages of a sample of 40 workers are shown below using a stem-and-leaf diagram
2 5 6 6 8 8 9
3 0 1 2 3 3 3 4 5 5 6 6 7 7 8 9 9
4 0 0 1 1 1 1 6 6 6 8 9
5 0 0 1 2 3
6 1
This study source was downloaded by 100000894283260 from CourseHero.com on 01-20-2025 14:35:07 GMT -06:00
https://www.coursehero.com/file/226492343/STA1610-Study-Unit-23-QApdf/
EXAM PACK
Recent exam questions and answers
Summarised study notes
Exam tips and guidelines
+27 81 278 3372
DISCLAIMER & TERMS OF USE
1. Educational Aid: These study notes are designed to serve as educational aids and should not be considered as a
substitute for individual research, critical thinking, or professional guidance. Students are encouraged to
conduct their own extensive research and consult with their instructors or academic advisors for specific
assignment requirements.
2. Personal Responsibility: While every effort has been made to ensure the accuracy and reliability of the
information provided in these study notes, the seller cannot guarantee the completeness or correctness of all
the content. It is the responsibility of the buyer to verify the accuracy of the information and use their own
judgment when applying it to their assignments.
3. Academic Integrity: It is crucial for students to uphold academic integrity and adhere to their institution's
policies and guidelines regarding plagiarism, citation, and referencing. These study notes should be used as a
tool for learning and inspiration, but any direct reproduction of the content without proper acknowledgment and
citation may constitute academic misconduct.
4. Limited Liability: The seller of these study notes shall not be held liable for any direct or indirect damages,
losses, or consequences arising from the use of the notes. This includes, but is not limited to, poor grades,
academic penalties, or any other negative outcomes resulting from the application or misuse of the information
provide
]
,STA1610 - Introduction to Statistics
Questions and Answers
Study Unit 1
1. Complete the following sentence: is a statistical methods 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
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. Presentation of the data in the form of tables, charts and summary statistics
3. Which one of the following statements 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. {A population mean is a parameter}
E. A statistic represents a property of a sample.
4. Which one of the following statements is incorrect?
1. A variable is a characteristic of an item or individual being measured
2. A sample is a portion of a population selected for analysis
3. In a pie chart, the size of segments varies according to the percentage in each category
4. An histogram describes better qualitative data than a bar chart {Histogram is used for Quantitative data}
5. The mode is the most frequent observation in a data set
5. What is a summary measure that is calculated from a sample to describe a characteristic of a population?
(1) Boxplot.
(2) Data.
(3) Parameter.
(4) Population.
(5) Statistic.
6. Which one of the following statements is incorrect with regard to qualitative or categorical data?
(1) Categorical data is measured on an ordinal or nominal scale.
(2) The frequency or count of each element can be determined.
(3) The mode can be determined.
(4) The mean can be calculated.
(5) None of the above.
7. Which one of the following statements is incorrect?
(1) A population is a complete set of objects in the study while a sample is a subset of a population.
(2) A statistic is a property of a population while a parameter is a property of a sample.
(3) Data from a sample are in a form of variables, which can either be numeric or categorical.
(4) Quantitative data are numeric and can either be discrete or continuous.
(5) Qualitative data are categorical and uses labels to identify attributes.
This study source was downloaded by 100000894283260 from CourseHero.com on 01-20-2025 14:34:54 GMT -06:00
https://www.coursehero.com/file/226493071/STA1610-Study-Unit-1-QApdf/
, 8. Which one of the following variables is not categorical?
A. Gender of a person
B. Name of internet provider
C. Height of a person
D. Marital Status of a person
E. Classifying an object as defective or non-defective
9. Which one of the following statements is correct?
1. Gender, marital status and religion are examples of qualitative ordinal variables
2. The amount of money a person spends in a shopping mall is a discrete variable
3. The number of girls with blue eyes is a discrete variable
4. The position one finishes in a race is a discrete variable.
5. The number of times a mouse makes a wrong turn in a laboratory represents a continuous variable
10. Which one of the following statements is incorrect with regard to variables and their scale of measurements?
A. Quantitative discrete variables result from counting attributes of an element.
B. Quantitative continuous variables result from measuring attributes of an element.
C. The mean and the median cannot be determined for a nominal scale of measurement.
D. Ordinal scale of measurement is a higher level of measurement that interval scale
This study source was downloaded by 100000894283260 from CourseHero.com on 01-20-2025 14:34:54 GMT -06:00
https://www.coursehero.com/file/226493071/STA1610-Study-Unit-1-QApdf/
, STA1610 Study Unit 2&3 Q&A
1. Which one of the following statements is incorrect with regard to variables and their scale of
measurements?
A. Quantitative discrete variables result from counting attributes of an element.
B. Quantitative continuous variables result from measuring attributes of an element.
C. The mean and the median cannot be determined for a nominal scale of measurement.
D. Ordinal scale of measurement is a higher level of measurement that interval scale
2. The two graphical techniques that can be used to represent nominal data are
1. Bar chart and histogram
2. Pie chart and ogive
3. Bar chart and pie chart
4. Histogram and ogive
5. Pie chart and histogram
3. Consider the following scores: 5 3 2 13 2
The outlier score is:
1.5
2.2
3. 2 and 5
4. 2 and 13
5. 13
4. Given the following symbols
Α. μ – Population mean
B. S – Sample Standard deviation
C. X̅ - Sample mean
D. σ – Population Standard deviation
Identify the symbols that represents a parameter as a measure of a population
1. Only A
2. A and D
3. B and C
4. C and D
5. A and C
5. The following data give the starting admission price (in R) for one-day tickets to 10 theme parks
58 63 41 42 29 50 62 43 40 40
Which of the following statements is correct?
1 The mean X = 46 and the standard deviation S = 11.01
2 The mean X = 42.8 and the standard deviation S = 10.10
3 The mean X = 46 8 and the standard deviation S = 11 10
4 The mean X = 46 and the standard deviation S = 10 53
5 The mean X = 46.8 and the standard deviation S = 123 29
6. The ages of a sample of 40 workers are shown below using a stem-and-leaf diagram
2 5 6 6 8 8 9
3 0 1 2 3 3 3 4 5 5 6 6 7 7 8 9 9
4 0 0 1 1 1 1 6 6 6 8 9
5 0 0 1 2 3
6 1
This study source was downloaded by 100000894283260 from CourseHero.com on 01-20-2025 14:35:07 GMT -06:00
https://www.coursehero.com/file/226492343/STA1610-Study-Unit-23-QApdf/
