An explanation of the methodology for most of 538's current polling averages. Almost since its founding, 538 has published comprehensive averages of polls for a wide variety of questions related to ...

New data show seven-figure net worths in midlife—but averages hide sharp divides in who actually has that wealth.

Have you ever found yourself wrestling with Excel formulas, trying to calculate moving averages or rolling totals, only to end up frustrated by the constant need for manual adjustments? You’re not ...

Have you ever found yourself staring at a growing dataset in Excel, wondering how to make sense of the numbers without spending hours manually updating formulas? Whether you’re tracking monthly sales, ...