Term

Definition
Adding consecutive lower class limits and dividing the result by 2 


Term

Definition
A graph that used points connected by line segments to represent the frequencies for the classes 


Term
Cumulative frequency distribution 

Definition
Displays the aggregate frequency of the category 


Term
Cumulative relative frequency distribution 

Definition
Displays the proportion or percentage of observations less than or equal to the category for discrete data and less than or equal to the upper class limit for continuous data 


Term

Definition
A graph that represents the cumulative frequency or cumulative relative frequency for the class 


Term

Definition
When the value of a variable is measured at different points in time 


Term

Definition
Plotting the time in which a variable is measured on the horizontal axis and the corresponding value of the variable on the vertical axis, connected by line segments 

