Term

Definition
Labels or names used to identify categories of like items. 


Term

Definition
Numerical values that indicate how much or how many. 


Term
Relative Frequency Distribution 

Definition
A tabular summary of data showing the number (frequency) of data values in each of the several nonoverlapping classes. 


Term
Percent Frequency Distribution 

Definition
A tabular summary of data showing the percentage of data values in each of the several nonoverlapping classes. 


Term

Definition
Graphical device for depicting qualitative data that have been summarized in a frequency, relative frequency, or percent frequency distribution. 


Term

Definition
A graphical device for depicting qualitative data that have been summarized based on subdivision of a circle into sectors that correspond to the relative frequency for each class. 


Term

Definition
The value halfway between the lower and upper class limits. 


Term

Definition
A graphical device that summarizes data by the number of dots above each data value on the horizontal axis. 


Term

Definition
A graphical presentation of a frequency distribution, relative frequency distribution, or percent frequency distribution of quantitative data constructed by placing the class intervals on the horizontal axis and the frequencies, relative frequencies, or percent frequencies on the vertical axis. 


Term
Cumulative Frequency Distribution 

Definition
A tabular summary of quantitative data showing the number of data values that are less than or equal to the upper class limit of each class. 


Term
Cumulative Relative Frequency Distribution 

Definition
A tabular summary of quantitative data showing the fraction or proportion of data values that are less than or equal to the upper class limit of each class. 


Term
Cumulative Percent Frequency Distribution 

Definition
A tabular summary of quantitative data showing the percentage of data values that are less than or equal to the upper class limit of each class. 


Term

Definition
A graph of cumulative distribution. 


Term
Exploratory Data Analysis 

Definition
Methods that use simple arithmetic and easytodraw graphs to summarize data quickly. 


Term

Definition
An exploratory data analysis technique that simultaneously rank orders quantitative data and provides insight about the shape of the distribution. 


Term

Definition
A tabular summary of data for two variables. The classes for one variable are represented by the rows; the classes for the other variable are represented by the columns. 


Term

Definition
Conclusions drawn from two or more separate crosstabulations that can be reversed when the data are aggregated into a single corsstabulation. 


Term

Definition
A graphical Presentation of the relationship between two quantitative variables. One variable is shown on the horizontal axis and the other variable is shown on the vertical axis. 


Term

Definition
A line that provides an approximation of the relationship between two variable. 


Term
Relative Frequency (Equation) 

Definition


Term
Approximate Class Width (Equation) 

Definition
(Largest Data Value  Smallest Data Value)/Number of Classes 

