ALL QMB 3200 MIDTERM VOCABULARY TESTS WITH SOLUTIONS

ALL QMB 3200 MIDTERM
VOCABULARY TESTS WITH
SOLUTIONS




Analytics - correct answer-the scientific process of transforming data into insight for
B BB B B B B B B B B B


making better decisions
B B B




Descriptive Analytics - correct answer-analytical techniques that describe what has
B B BB B B B B B B


happened in the past
B B B B




Predictive Analytics - correct answer-analytical techniques that use models
B B BB B B B B B


constructed from past data to predict the future or assess the impact of one
B B B B B B B B B B B B B B


variable or another
B B B




Prescriptive Analytics - correct answer-analytical techniques that yield course of
B B BB B B B B B B


action
B




Big Data - correct answer-a set of data that cannot be managed processed or
B B BB B B B B B B B B B B


analyzed with commonly available software in a reasonable amount of time.
B B B B B B B B B B B


characterized by four V's: Volume, Veracity, Velocity, Variety
B B B B B B B B




data mining - correct answer-the process of using procedures from statistics and
B B BB B B B B B B B B


computer science
B B




frequency distribution - correct answer-a tabular summary of data showing the
B B BB B B B B B B B


Bnumber of observations in each of several nonoverlapping categories
B B B B B B B B

, relative frequency distribution - correct answer-A tabular summary of data showing
B B B BB B B B B B B


Bthe fraction or proportion of observations in each of several nonoverlapping
B B B B B B B B B B


Bcategories or classes. B B




percent frequency distribution - correct answer-A tabular summary of data showing
B B B BB B B B B B B


the percentage of observations in each of several nonoverlapping classes
B B B B B B B B B B




bar chart - correct answer-A graphical device for depicting categorical data that
B B BB B B B B B B B B


have been summarized in a frequency, relative frequency, or percent frequency
B B B B B B B B B B B


distribution.
B




pie chart - correct answer-A graphical device for presenting data summaries based
B B BB B B B B B B B B


on subdivision of a circle into sectors that correspond to the relative frequency for
B B B B B B B B B B B B B B


each class.
B B




class midpoint - correct answer-The value halfway between the lower- and upper-
B B BB B B B B B B B B


class limits. B




dot plot - correct answer-A graphical device that summarizes data by the number
B B BB B B B B B B B B B


of dots above each data value on the horizontal axis.
B B B B B B B B B B




histogram - correct answer-A graphical display of a frequency distribution, relative
B BB B B B B B B B B


frequency distribution, or percent frequency distribution of quantitative data
B B B B B B B B B


constructed by placing the class intervals on the horizontal axis and the
B B B B B B B B B B B B


frequencies, relative frequencies, or percent frequencies on the vertical axis.
B B B B B B B B B B




cumulative frequency distribution - correct answer-A tabular summary of
B B B BB B B B B


quantitative data showing the number of data values that are less than or equal to
B B B B B B B B B B B B B B B


the upper-class limit of each class.
B B B B B B




cumulative relative frequency distribution - correct answer-A tabular summary of
B B B B BB B B B B


quantitative data showing the fraction or proportion of data values that are less
B B B B B B B B B B B B B


than or equal to the upper-class limit of each class.
B B B B B B B B B B




cumulative percent frequency distribution - correct answer-A tabular summary of
B B B B BB B B B B


quantitative data showing the percentage of data values that are less than or equal
B B B B B B B B B B B B B B


to the upper-class limit of each class.
B B B B B B B




Stem and leaf display - correct answer-A graphical display used to show
B B B B BB B B B B B B


simultaneously the rank order and shape of a distribution of data.
B B B B B B B B B B B




crosstabulation - correct answer-A tabular summary of data for two variables. The
B BB B B B B B B B B B


classes for one variable are represented by the rows; the classes for the other
B B B B B B B B B B B B B B


variable are represented by the columns.
B B B B B B




Simpson's Paradox - correct answer-Conclusions drawn from two or more separate
B B BB B B B B B B B


crosstabulations that can be reversed when the data are aggregated into a single
B B B B B B B B B B B B B


crosstabulation.
B