Analyze Your Data

Distributions, Relationships, and Models

Analyzing your data helps you make informed decisions. Data analysis often involves these actions:

• Examining distributions

• Discovering relationships

• Hypothesis testing

• Building models

Figure 5.1 Analysis Examples 

Contents

About This Chapter

The Importance of Graphing Your Data

Understand Modeling Types

Example of Viewing Modeling Type Results

Change the Modeling Type

Analyze Distributions

Distributions of Continuous Variables

Distributions of Categorical Variables

Analyze Relationships

Use Regression with One Predictor

Compare Averages for One Variable

Compare Proportions

Compare Averages for Multiple Variables

Use Regression with Multiple Predictors

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