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Section 2.1, Frequency Distributions and Their Graphs

Section , Frequency Distributions and Their GraphsThe main characteristics we will use to describe a data set are its center, its variability, and itsshape. One way to see patterns in data is to make a graph . In this Section , we will look at 3 waysto graphically summarize data: Frequency Distributions , Frequency histograms, and a cumulativefrequency Frequency distributionAfrequency distributionis a table that shows classes or intervals of data entries with a countof the number of entries in each class. Thefrequencyfof a class is the number of data entries inthe class.

Section 2.1, Frequency Distributions and Their Graphs The main characteristics we will use to describe a data set are its center, its variability, and its shape. One way to see patterns in data is to make a graph. In this section, we will look at 3 ways to graphically summarize data: frequency distributions, frequency histograms, and a cumulative

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