1. There are 3 types of relationships.

2. Direct relationship
In a direct relationship, as one variable _________________, the other variable also ___________.

3. Indirect relationship
In an indirect relationship, as one variable _________, the other variable _____________.

4. No relationship
In this relationship, as one variable _________________, the other variable ___________ in no pattern.

5. There are three types of graphs

6. Bar graph
a type of graph in which the length of the bars are used to represent and compare data.

7. Line graph
shows relationships between the independent and dependent variables. Shows changes over time.

8. Pie chart/graph
used to show parts of a whole.

9. Identifying Variables

10. What is a Variable?
A variable is an object, event, idea, feeling, time period, or any other type of category you are trying to measure.
There are two types of variables-independent and dependent.

11. What is an Independent Variable?
It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age.

12. What is a Dependent Variable?
It is something that depends on other factors.
For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before you took the test, or even how hungry you were when you took it.