In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...

A statistical measure of the linear relationship between two variables. The range of a correlation co-efficient is from -1 to +1. Variables with a positive correlation move in the same direction while ...

Linear regression is a powerful and long-established statistical tool that is commonly used across applied sciences, economics and many other fields. Linear regression considers the relationship ...

John Edwards is a licensed attorney with experience in commodities and investments. He provides performance analysis of hedge funds and investors. Suzanne is a content marketer, writer, and ...