If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

The Fed's dot plot can help you see where interest rates and overall monetary policy may be headed in the short term. But the ...

Wall Street closely watches Federal Reserve meetings, but it's not just the decision on interest rates that makes headlines. The central bank's dot plot is a key quarterly forecast for both investors ...

This post recommends using Trellis plots instead of 3D bar charts for three-dimensional (three variable) data. In Winner of the Bad Graph Contest Announced, I promised to present alternatives to Excel ...