Exponential functions are widely used in science, math, economics, and other disciplines.  An exponential function has certain traits that distinguish it from others (such as linear or quadratic...

Histograms are often used in data analysis and statistics to represent a given set of values.  However, this still raises the question of what exactly a histogram tells us. So, what does a...

It is one thing to calculate a standard deviation from a data set.  However, it is another to interpret it and find out what it is telling you about a data set. So, how do you interpret...

In math, definitions are the first thing we learn to build our knowledge.  The concepts of equations and expressions are important, but how are they connected? So, what is the difference...

In statistics, we describe data sets using both standard deviation and standard error of the mean (also called standard error).  Although these two terms sound similar, there are some key...

In calculus, derivatives and integrals are two different concepts – but they are related in an important way.  Both tell us something about a function and its behavior, but it helps to know...