OPRE 3360 Mid-Term Review
What is an ogive? - correct answer✔ ✔ A graphical representation
of cumulative relative frequencies
The classification of student major (accounting, economics,
management, marketing, other) is an example of a(n) - correct answer
✔ ✔ Nominal Random Variable
Which of the following techniques can be used to explore relationships
between two nominal variables? - correct answer✔ ✔ Comparing
the relative frequencies with a cross-classification table.
Comparing pie charts, one for each column
Comparing bar charts, one for each column
The owner of a factory regularly requests a graphical summary of all
employees' salaries. The graphical summary of salaries is an example
of: - correct answer✔ ✔ Descriptive Statistics
Six hundred residents of a city are polled to obtain information on
voting intentions in an upcoming city election. The six hundred
residents in this study is an example of a(an): - correct answer✔ ✔
Sample
, A statistics professor asked students in a class their ages. On the basis
of this information, the professor states that the average age of all the
students in the university is 21 years. This is an example of: - correct
answer✔ ✔ Statistical Inference
A tabular summary of a set of data showing the fraction of the total
number of items in several non-overlapping classes is a: - correct
answer✔ ✔ Relative frequency distribution
In constructing a frequency distribution, as the number of classes are
decreased, the class width: - correct answer✔ ✔ Increases
The birth weight of newborns, measured in grams, is an example of: -
correct answer✔ ✔ Quantitative data
Temperature is an example of: - correct answer✔ ✔ A quantitative
variable
Which measure of central location can be used for both interval and
nominal variables? - correct answer✔ ✔ Mode
What is an ogive? - correct answer✔ ✔ A graphical representation
of cumulative relative frequencies
The classification of student major (accounting, economics,
management, marketing, other) is an example of a(n) - correct answer
✔ ✔ Nominal Random Variable
Which of the following techniques can be used to explore relationships
between two nominal variables? - correct answer✔ ✔ Comparing
the relative frequencies with a cross-classification table.
Comparing pie charts, one for each column
Comparing bar charts, one for each column
The owner of a factory regularly requests a graphical summary of all
employees' salaries. The graphical summary of salaries is an example
of: - correct answer✔ ✔ Descriptive Statistics
Six hundred residents of a city are polled to obtain information on
voting intentions in an upcoming city election. The six hundred
residents in this study is an example of a(an): - correct answer✔ ✔
Sample
, A statistics professor asked students in a class their ages. On the basis
of this information, the professor states that the average age of all the
students in the university is 21 years. This is an example of: - correct
answer✔ ✔ Statistical Inference
A tabular summary of a set of data showing the fraction of the total
number of items in several non-overlapping classes is a: - correct
answer✔ ✔ Relative frequency distribution
In constructing a frequency distribution, as the number of classes are
decreased, the class width: - correct answer✔ ✔ Increases
The birth weight of newborns, measured in grams, is an example of: -
correct answer✔ ✔ Quantitative data
Temperature is an example of: - correct answer✔ ✔ A quantitative
variable
Which measure of central location can be used for both interval and
nominal variables? - correct answer✔ ✔ Mode
