Despite the chant that correlation is not causation, some researchers believe the design of scatter plots nudges us to the wrong conclusions. Can a change in their design lessen that risk? Analyzing ...

The adjusted r-squared is helpful for multiple regression and corrects for erroneous regression, giving you a more accurate ...

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 ...

Scatter diagrams are used to explore patterns between two sets of data. The table shows the results of eight students' maths and science marks in an assessment. Construct a scatter graph that ...

The graph is a scatter plot, entitled "Rainfall and Plant Growth." The horizontal X axis shows Average Rainfall ranging from zero to four thousand, in units of millimeters per year, in increments of ...

If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...