UCF QMB3200 Midterm Test Questions with Answers Rated A
the scientific process of transforming data into insight for
Analytics
making better decisions
Analytical techniques that describe what has happened in
Descriptive Analytics
the past.
Analytical techniques that use models constructed from
Predictive Analytics past data to predict the future or assess the impact of one
variable on another.
Prescriptive Analytics Analytical techniques that yield a course of action.
A set of data that cannot be managed, processed, or
analyzed with commonly available software in a reason-
Big Data
able amount of time. Big Data are characterized by 4 v's:
volume, velocity, variety, and veracity.
The process of using procedures from statistics and com-
Data Mining puter science to extract useful information from extremely
large databases.
A tabular summary of data showing the number (fre-
Frequency Distribution quency) of observations in each of several nonoverlapping
categories or classes.
A tabular summary of data showing the fraction or pro-
Relative Frequency Distribution portion of observations in each of several nonoverlapping
categories or classes.
A tabular summary of data showing the percentage of
Percent Frequency Distribution
observations in each of several nonoverlapping classes.
A graphical device for depicting categorical data that have
Bar Chart been summarized in a frequency, relative frequency, or
percent frequency distribution.
Pie Chart
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, UCF QMB3200 Midterm Test Questions with Answers Rated A
A graphical device for presenting data summaries based
on subdivision of a circle into sectors that correspond to
the relative frequency for each class.
Class Midpoint the value halfway between the lower and upper class limits
a graphical device that summarizes data by the number of
Dot Plot
dots above each data value on the horizontal axis
A graphical display of a frequency distribution, relative
frequency distribution, or percent frequency distribution
Histogram of quantitative data constructed by placing the class in-
tervals on the horizontal axis and the frequencies, relative
frequencies, or percent frequencies on the vertical axis.
A tabular summary of quantitative data showing the num-
Cumulative Frequency Distribution ber of data values that are less than or equal to the upper
class limit of each class.
A tabular summary of quantitative data showing the frac-
Cumulative Relative Frequency Distribution tion or proportion of data values that are less than or equal
to the upper class limit of each class.
A tabular summary of quantitative data showing the per-
Cumulative Percent Frequency Distribution centage of data values that are less than or equal to the
upper class limit of each class.
a graphical display used to show simultaneously the rank
Stem-and-leaf Display
order and shape of a distribution of data
A tabular summary of data for two variables. The classes
Crosstabulation for one variable are represented by the rows; the classes
for the other variable are represented by the columns.
Conclusions drawn from two or more separate crosstabu-
Simpson's Paradox lations that can be reversed when the data are aggregated
into a single crosstabulation.
Scatter Diagram
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the scientific process of transforming data into insight for
Analytics
making better decisions
Analytical techniques that describe what has happened in
Descriptive Analytics
the past.
Analytical techniques that use models constructed from
Predictive Analytics past data to predict the future or assess the impact of one
variable on another.
Prescriptive Analytics Analytical techniques that yield a course of action.
A set of data that cannot be managed, processed, or
analyzed with commonly available software in a reason-
Big Data
able amount of time. Big Data are characterized by 4 v's:
volume, velocity, variety, and veracity.
The process of using procedures from statistics and com-
Data Mining puter science to extract useful information from extremely
large databases.
A tabular summary of data showing the number (fre-
Frequency Distribution quency) of observations in each of several nonoverlapping
categories or classes.
A tabular summary of data showing the fraction or pro-
Relative Frequency Distribution portion of observations in each of several nonoverlapping
categories or classes.
A tabular summary of data showing the percentage of
Percent Frequency Distribution
observations in each of several nonoverlapping classes.
A graphical device for depicting categorical data that have
Bar Chart been summarized in a frequency, relative frequency, or
percent frequency distribution.
Pie Chart
1/9
, UCF QMB3200 Midterm Test Questions with Answers Rated A
A graphical device for presenting data summaries based
on subdivision of a circle into sectors that correspond to
the relative frequency for each class.
Class Midpoint the value halfway between the lower and upper class limits
a graphical device that summarizes data by the number of
Dot Plot
dots above each data value on the horizontal axis
A graphical display of a frequency distribution, relative
frequency distribution, or percent frequency distribution
Histogram of quantitative data constructed by placing the class in-
tervals on the horizontal axis and the frequencies, relative
frequencies, or percent frequencies on the vertical axis.
A tabular summary of quantitative data showing the num-
Cumulative Frequency Distribution ber of data values that are less than or equal to the upper
class limit of each class.
A tabular summary of quantitative data showing the frac-
Cumulative Relative Frequency Distribution tion or proportion of data values that are less than or equal
to the upper class limit of each class.
A tabular summary of quantitative data showing the per-
Cumulative Percent Frequency Distribution centage of data values that are less than or equal to the
upper class limit of each class.
a graphical display used to show simultaneously the rank
Stem-and-leaf Display
order and shape of a distribution of data
A tabular summary of data for two variables. The classes
Crosstabulation for one variable are represented by the rows; the classes
for the other variable are represented by the columns.
Conclusions drawn from two or more separate crosstabu-
Simpson's Paradox lations that can be reversed when the data are aggregated
into a single crosstabulation.
Scatter Diagram
2/9
