In this blog post I’d like to talk about the Pearson Correlation Coefficient. It’s a big fancy title, but it’s not really a big fancy statistic, and anyone who has taken a statistics class remembers this as . Maybe that jogged your memory, maybe it didn’t. We will start off very gradually. There are all kinds … More The Pearson Correlation Coefficient

The last post about the geometrical interpretation of the derivative provided a useful concept to sharpen our view of what the derivative is, the limit of the secant lines as approaches 0,  or alternatively the tangent line at the point you are interested in. Unfortunately, this is an interpretation of the derivative and not a definition. … More Flavors of the Derivative Part 2: Beyond the slope

What do you think of when I mention math class? One of the first things that probably flashes to your mind is a graph. We learned very early in our studies that formulas may be described as curves. We take the method of representing formulas geometrically for granted, but it has really only been around … More Flavors of the Derivative: A Geometric Perspective