BUAL 2600 EXAM 1 GUPTA QUESTIONS AND
ANSWERS 2026
A restaurant leaves comment cards on all of its tables and encourages customers to
participate in a brief survey to learn about their overall experience. - Answers -
convenience sampling
A quality control worker at a factory selects the first 10 items she sees as her sample for
the day. - Answers - Convenience sampling
A population that consists of all the customers who will use the drive-thru of the local
fast food restaurant is called a(n) ________. - Answers - finite population
In ________ we select elements because they are easy to sample - Answers -
convenience sampling
_______ sampling is where we know the chance that each element will be included in
the sample, which allows us to make statistical inferences about the sample population.
- Answers - probability
_______ uses traditional or newer graphics to present visual summaries of business
information. - Answers - graphical descriptive analytics
Which of the following is not a supervised learning technique in predictive analytics? -
Answers - factor analysis
Which of the following is a type of question used in survey research? - Answers -
dichotomous open-ended multiple-choice
Non overlapping groups of similar elements in a population are called - Answers - strata
Data that are collected by an individual through personally planned experimentation or
observation are ________. - Answers - primary data
Which of the following is a quantitative variable? - Answers - mileage of a car
An identification of police officers by rank would represent a(n) ________ level of
measurement. - Answers - ordinal
, You want to select a simple random sample of 100 employees of Company X. You
assign a number to every employee in the company database from 1 to 1000 and use a
random number generator to select 100 numbers - Answers - simple random sample
All employees of the company are listed in alphabetical order. From the first 10
numbers, you randomly select a starting point: number 6. From number 6 onwards,
every 10th person on the list is selected (6, 16, 26, 36, and so on), and you end up with
a sample of 100 people - Answers - systematic sampling
The company has 800 female employees and 200 male employees. You want to ensure
that the sample reflects the gender balance of the company, so you sort the population
into two strata based on gender. Then you use random sampling on each group,
selecting 80 women and 20 men, which gives you a representative sample of 100
people. - - Answers - stratified sampling
A(n) ________ is a graphical presentation of the current status and historical trends of a
business's key performance indicators. - Answers - dashboard
As a business owner, I have requested my staff to develop a set of dashboards that can
be used by the public to show wait time at each of my four local coffee shops at peak
times during the day and whether the time is short, medium, or long. Which of the
following graphical displays would be the best choice? - Answers - bullet graph
A(n) ________ is a graph of a cumulative distribution - Answers - ogive
All of the following are used to describe quantitative data except the ________. -
Answers - pie chart
Which of the following graphs is for qualitative data? - Answers - bar chart
A stem-and-leaf display is best used to ________. - Answers - display the shape of the
distribution
When developing a frequency distribution, the class (group) intervals must be
________. - Answers - nonoverlapping
If there are 130 values in a data set, how many classes should be created for a
frequency histogram? - Answers - 8
The general term for a graphical display of categorical data made up of vertical or
horizontal bars is called a(n) ________. - Answers - bar chart
A relative frequency histogram having a longer tail to the right than to the left is said to
be ________. - Answers - skewed to the right
Which percentile describes the third quartile, Q3? - Answers - 75th
ANSWERS 2026
A restaurant leaves comment cards on all of its tables and encourages customers to
participate in a brief survey to learn about their overall experience. - Answers -
convenience sampling
A quality control worker at a factory selects the first 10 items she sees as her sample for
the day. - Answers - Convenience sampling
A population that consists of all the customers who will use the drive-thru of the local
fast food restaurant is called a(n) ________. - Answers - finite population
In ________ we select elements because they are easy to sample - Answers -
convenience sampling
_______ sampling is where we know the chance that each element will be included in
the sample, which allows us to make statistical inferences about the sample population.
- Answers - probability
_______ uses traditional or newer graphics to present visual summaries of business
information. - Answers - graphical descriptive analytics
Which of the following is not a supervised learning technique in predictive analytics? -
Answers - factor analysis
Which of the following is a type of question used in survey research? - Answers -
dichotomous open-ended multiple-choice
Non overlapping groups of similar elements in a population are called - Answers - strata
Data that are collected by an individual through personally planned experimentation or
observation are ________. - Answers - primary data
Which of the following is a quantitative variable? - Answers - mileage of a car
An identification of police officers by rank would represent a(n) ________ level of
measurement. - Answers - ordinal
, You want to select a simple random sample of 100 employees of Company X. You
assign a number to every employee in the company database from 1 to 1000 and use a
random number generator to select 100 numbers - Answers - simple random sample
All employees of the company are listed in alphabetical order. From the first 10
numbers, you randomly select a starting point: number 6. From number 6 onwards,
every 10th person on the list is selected (6, 16, 26, 36, and so on), and you end up with
a sample of 100 people - Answers - systematic sampling
The company has 800 female employees and 200 male employees. You want to ensure
that the sample reflects the gender balance of the company, so you sort the population
into two strata based on gender. Then you use random sampling on each group,
selecting 80 women and 20 men, which gives you a representative sample of 100
people. - - Answers - stratified sampling
A(n) ________ is a graphical presentation of the current status and historical trends of a
business's key performance indicators. - Answers - dashboard
As a business owner, I have requested my staff to develop a set of dashboards that can
be used by the public to show wait time at each of my four local coffee shops at peak
times during the day and whether the time is short, medium, or long. Which of the
following graphical displays would be the best choice? - Answers - bullet graph
A(n) ________ is a graph of a cumulative distribution - Answers - ogive
All of the following are used to describe quantitative data except the ________. -
Answers - pie chart
Which of the following graphs is for qualitative data? - Answers - bar chart
A stem-and-leaf display is best used to ________. - Answers - display the shape of the
distribution
When developing a frequency distribution, the class (group) intervals must be
________. - Answers - nonoverlapping
If there are 130 values in a data set, how many classes should be created for a
frequency histogram? - Answers - 8
The general term for a graphical display of categorical data made up of vertical or
horizontal bars is called a(n) ________. - Answers - bar chart
A relative frequency histogram having a longer tail to the right than to the left is said to
be ________. - Answers - skewed to the right
Which percentile describes the third quartile, Q3? - Answers - 75th
