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Question

Why do we group data?

Solution
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Grouped data are data formed by aggregating individual observations of a variable into groups, So that a frequency distribution of these groups serves as a convenient means of summarizing or analyzing the data these are two major types of grouping data binning of a single dimensional variable, replacing individual numbers by counts in, and grouping multidimensional (especially by independent variables) obtaining the distribution of ungrouped dimensions (especially the dependent variables).

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