Cross posted at the Presimetrics blog. This post has a few simple graphs showing the relationship between the growth in real GDP and a few other variables: the top marginal tax rate, spending by the ...

Scatter diagrams are used to explore patterns between two sets of data. The table shows the results of eight students' maths and science marks in an assessment. Construct a scatter graph that ...

When you create a graph in Excel, the software automatically sizes the X and Y axis lines, so the data you want to display is shown. You can override the settings and set the vertical and horizontal ...

The 'line of best fit' is a line that goes roughly through the middle of all the scatter points on a graph. The closer the points are to the line of best fit the stronger the correlation is. This ...

Here’s the cure to being duped again. It’s a site called Spurious Correlations by Tyler Vigen–or more accurately, Tyler Vigen’s software. He created code to spot correlations in public data sets and ...

In semi-supervised learning on graphs, response variables observed at one node are used to estimate missing values at other nodes. The methods exploit correlations between nearby nodes in the graph.