Learn how to calculate the mean by walking through some basic examples & trying practice problems. The mean is used to summarize a data set. It is a measure of the center of a data set. Let's look at …

Mean, median, and mode are different measures of center in a numerical data set. They each try to summarize a dataset with a single number to represent a "typical" data point from the dataset.

Calculate the mean, median, or mode of a data set!

If you want to remove the outliers then could employ a trimmed mean, which would be more fair, as it would remove numbers on both sides.

Actually, no one really created math. For instance, maybe they used to split food evenly back then. That's division. And maybe someone had berries, and they got some more. That's addition. So no …

An Introduction to Modular Math When we divide two integers we will have an equation that looks like the following:

This is called functional notation, and it has the same meaning as y = at this point in math. As you get into Algebra II, you will learn how to combine functions where this language will be more useful than …

And that's all well and good, but what does this actually mean? Well, one interpretation of a reciprocal is it's the number that when you multiply it by the original number, you get one.

Not here, no. If you're working with computer representations of matrices, it's often easiest to 0-index. But in pure math, we start counting at 1.

Learn what it means for two figures to be congruent, and how to determine whether two figures are congruent or not. Use this immensely important concept to prove various geometric theorems about …