Categorical data, data that describes qualities or characteristics that sort data into distinct groups., Numerical data, data that represents measurable quantities or numerical counts., Statistical question, a question can be answered with data that may vary, Measures of Center, statistical values used to describe the "typical" or central point of a dataset., Measures of Variability, describe how far apart data points are from each other and from the center of a dataset. While central tendency tells you where the data is, variability tells you how scattered it is., Population, any entire collection of people, animals, or objects that someone is interested in learning about. Each person, animal, or objects in the population is called a member, Sample, collection of members of a population, Population Characteristic, a number that summarizes data collected from the entire population, Sample Statistic, a number that summarizes data collected from a sample, Random Sample, a sample in which every member of the population has an equally likely chance of being chosen..

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