Chapter 4 Summarizing Data
After you know how to create a data set, the next step is to learn how to summarize it. This chapter explains the concepts of levels of measurement and types of response scales. Depending on the variable, appropriate methods to summarize it include the following:
- descriptive statistics, such as the average
- frequencies or counts of values for a variable
- graphs that are appropriate for the variable, such as bar charts or histograms, box plots, or stem-and-leaf plots
SAS provides several procedures for summarizing data. This chapter discusses the UNIVARIATE, MEANS, FREQ, CHART, and GCHART procedures.
This chapter uses the body fat data from Chapter 2, and the speeding ticket data from Chapter 3. This chapter introduces ...
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