Correlation measures the relationship between two variables. Learn how to calculate the correlation coefficient between market indicators and stock prices.

The simplest form of regression in Python is, well, simple linear regression. With simple linear regression, you're trying to ...

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

First, it is not a simple comparison of just two elements as you would find in a bar chart, or numbers over time as in a line graph. The scatterplot plots two variables in relationship to each other.