Analyzing and summarizing data that involves only one variable, such as finding measures of center (mean, median) and spread (range, standard deviation).
Categorical Variable: A variable that represents categories or groups, such as eye color or favorite movie genre.
Quantitative Variable: A variable that represents numerical values, such as height or test scores.
Histogram: A graphical representation of one-variable data that shows the frequency of each value or range of values.
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