Exploratory Graphs and Correlations

Michael Brown/ January 11, 2017/ Uncategorized/ 0 comments

To identify an appropriate subsample for analysis, we are going to use exploratory graphs to visually sort through the data. This is one approach that will be supplemented by a measure of interdependence called correlation. A correlation coefficient measures the linear dependence between two variables; in our case, tuition revenue and instructional expenditure per student. First, let’s consider the graph

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