A linear relationship (or linear association) is a statistical term used to describe the directly proportional relationship between a variable and a constant.

The residual standard deviation describes the difference in standard deviations of observed values vs. predicted values in a regression analysis.

Revise how to plot a linear equation graph. Learn how to read x and y coordinates from a graph in this BBC Bitesize maths KS3 guide.

Understand the mathematics and economic impact of Bitcoin halvings and how they control inflation, reinforce scarcity and more!

Capture relationships between data sets by graphing linear equations in Microsoft Excel 2007. Linear equations allow you to predict values within your data set and view the overall trend.

Solving equations with light. (Courtesy: iStockphoto/Henrik Jonsson) 3 x + y = 2 x + 3 y = 0 It’s the sort of easy maths problem that you can work out in a few minutes using pencil and paper, but ...

Discover the 17 equations that have significantly shaped our understanding of the world.