Stats 1 - Chapter 1 Descriptive statistics-methods of...

Chapter 1
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Descriptive statistics -methods of organizing, summarizing,
and presenting data
.
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Graphical techniques -histograms, scatterplots, etc.
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Numerical techniques -mean, median, mode, etc.
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Inferential statistics -used to draw conclusions or inferences
about characteristics of populations based on sample data
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Population -set of all items of interest in a statistical
problem
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Parameter -a descriptive measure of a population
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Sample -a set of data drawn from the population
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Statistic -a descriptive measure of a sample

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Statistical Inference -the process of making an estimate,