This is a list of all of the terms covered in this packet. Definitions and examples will be provided in the powerpoint below.
Source: Greene
Which of the following variables is qualitative, and which is quantitative?
Height of a tree
Color of a tree
Age of a tree
Number of leaves on a tree
Type of tree
Uses of trees
Width of a leaf on a tree
Qualitiative: Color of a tree, type of tree, uses of a tree. These are all non-numeric variables.
Quantitative: Height of a tree, age of a tree, number of leaves on a tree, width of a leaf on a tree. All of these variables can be written out as numbers.
Source: Greene
All of the following are quantitative variables. But can you decide which ones are discrete, and which are continuous?
Diameter of a baseball
Weight of a baseball
Number of pitches in an at-bat in a baseball game
Number of players on a baseball team
Length of a baseball game
How many home runs were hit in a game
Length of a baseball bat
Discrete: Number of pitches in an at-bat in a baseball game, number of players on a baseball team, how many home runs were hit in a game. All of these can be counted out individually (one home run, two home runs, three home runs, etc)
Continuous: Diameter of a baseball, weight of a baseball, length of a baseball game, length of a baseball bat. These are all measurements, which is the most common continuous variable. The length of a game, for example, doesn't have to be 3 hours. We can get very specific, such as 2 hours, 58 minutes, 23.38474 seconds. And we can get more specific yet. It is not countable.
Source: Greene
