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Chapter 14

# Chapter 14 - Chapter 14 Descriptive Statistics 1...

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Chapter 14: Descriptive Statistics 1. descriptive statistics: the type of statistical analysis focused on describing, summarizing, or explaining a set of data a. goal- describe or summarize your research data 2. inferential statistics: type of statistical analysis focused on making inferences about populations based on sample data a. goal- go beyond the immediate set of data and to infer characteristics of populations based on your sample data 3. Descriptive Stats a. Data set- set of data where the rows are “cases” and the columns are “variables” 4. Frequency Distributions a. data arrangement in which the frequencies of each unique data value is shown 5. Graphic Representations of Data a. Bar graph- graph that uses vertical bars to represent the data values of a categorical variable b. Histograms- graph depicting frequencies and distribution of a quantitative variable c. Line graphs- graph relying on the drawing of one or more lines d. Scatterplots- graphical depiction of the relationship between the two quantitative

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Chapter 14 - Chapter 14 Descriptive Statistics 1...

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