Excel's intercept function takes the data points that define a line on a graph and calculates the y value for the point on the graph where x is equal to zero.

Correlation measures the linear relationship between two variables. By measuring and relating the variance of each variable, correlation gives an indication of the strength of the relationship. To ...

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.

Calculating the Pearson correlation coefficient can be complicated but software makes it much easier. You can use several methods to calculate correlation in Excel.

Negative correlation is a relationship between two variables in which one variable increases as the other decreases, and vice versa.