Chapter 1 Graphing. Types of Graphs Type of Graph What does it show?Example Drawing Scatterplot Bar graph Pie graph Line graph used to determine if two.

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Presentation transcript:

Chapter 1 Graphing

Types of Graphs Type of Graph What does it show?Example Drawing Scatterplot Bar graph Pie graph Line graph used to determine if two variables are related used to compare groups of information shows how a whole is divided into percentages used to show trends in data over time

Scatterplots Scatterplots show how a change in one variable influences another variable Independent variable: the variable on the x-axis; the variable we change in an experiment Dependent variable: the variable on the y-axis; the variable we measure in an experiment

Ms. Brownson’s Graphing Rules 1.Make it big and beautiful! Fill the whole graph space. 2.Use even intervals: - Divide the range of your data by the number of boxes/lines. 3.Include the following elements: - a descriptive title - labels with units on the x and y axes

Relationships between Variables Direct Relationship: when one variable increases, the other variable increases too

Relationships between Variables Indirect Relationship: when one variable increases, the other variable decreases

Relationships between Variables No Relationship: no pattern exists between the two variables