We might say that we have noticed a correlation between foggy days and attacks of wheeziness. However, in statistical terms we use correlation to denote association between two quantitative variables.

A linear equation can have more than one variable, such as y = a + b x + c z; however, this resource focuses on equations involving one or two variables. Linear equations can be represented in ...

Solving a pair of simultaneous equations involves determining the values of x and y that satisfy both equations (simultaneously. Graphically, this corresponds to finding the coordinates (x, y) where ...

Students graph linear equations in Zach Loy’s ninth-grade algebra class at Braham Area High School in Minnesota. Credit: Patience Zalanga for The Hechinger Report The Hechinger Report covers one topic ...

A methodological choice has created divergent paths of polling results. Is this election more like 2020 or 2022?

How to Run a Multivariate Regression in Excel. Multivariate regression enables you to relate one dependent variable to multiple independent variables you've derived from surveys or measurements.

Learn how to graph linear regression in Excel. Use these steps to analyze the linear relationship between an independent and a dependent variable.

Spread the loveIntroduction: Graphing an equation is an essential skill in mathematics, as it helps us visualize the relationships between variables. There are several techniques that can be employed ...

The BBC is to have “fewer linear broadcast services” in the next decade as it “consolidates activity under one simple, single brand,” Director General Tim Davie has revealed, as he ...