Suppose I asked the question, what is the probability that a randomly selected teenager drinks coffee? We may think that that number is rather low. Many middle schoolers are teenagers and there...

When working with fractions, we often want to simplify as much as possible to make our work easier.  Denominators are important when adding or subtracting fractions – especially when square...

What’s the deal with the number e? Do we really need another irrational number that has its own key on most calculators? Isn’t π enough? Usually, the number e gets introduced to us when we...

Adding, multiplying and dividing square roots are important skills for algebra, geometry, and calculus courses.  The rules are a little different for each of these three operations,...

Median tells us about the center of a distribution, which can help us to understand a data set.  However, median is just one statistical measure for data, and it has both advantages and...

Line charts are sometimes used in data analysis and statistics to represent a given set of values.  Line charts are useful for visualizing how one variable changes with another. So, what is a...