Term

Definition
Shows the # of times the possible values for a variable occur in a data set. They can be displayed in tables or diagrams (bar graph, histograms, frequency pologon) to give an overview of the data and reveal trends in data. 


Term

Definition
The number of values of a variable in a data set that falls within a given category or interval (I.E. 5X, 2Y, 7Z). 


Term

Definition
The # of values of a variable in a data set that fall within a catagory/interval, divided by the total number of values in data set, only for quantitive variables (I.E. 7X, out of 33 total, 7/33 or 21%) 


Term

Definition
The sum of all frequencies up to a certain value of the variable, applying only to quantitive variables ( 2X, 4Y cumulative frequency = 6). 


Term
Relative Cumulative Frequency 

Definition
The sum of all relative frequencies up to a certian value of the variable (I.E. 1X, 2Y, 3Z, out of 33, r.c.frequency = 6/33 or 18%). 


Term
Qualitive Variables: Name the columns of a frequency table 

Definition
Category, Tall, Frequency, and Relative Frequency. 


Term
Qualitive Variables: What type of graph is used for these variables? 

Definition
A bar graph, with small spaces seperating the bars. Catagories fall on the Xaxis, and frequency or relative frequency on the Yaxis. 


Term
Quantitive Variables: In a frequency table, what are the columns? 

Definition
Categoy, Tally, Frequency, Cumulative Frequency, Relative Cumulative Frequency. 


Term

Definition
Quantitive variables with a large range of possible values are grouped into the values of class intervals. Continuous variables are more likely to be used in this way, while discrete can be grouped into class intervals or not. 


Term

Definition
A frequency diagram for quantitive variables with no spaces between the bars. It has the categories on the Xaxis, and Freq., R.Freq., C.Freq., or R.C.Freq. on the Yaxis. 

