Calculating the mean There are many different types of mean, but usually when people say mean, they are talking about the arithmetic mean. The arithmetic mean is the sum of all of the data points …

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 …

Learn how we define the derivative using limits. Learn about a bunch of very useful rules (like the power, product, and quotient rules) that help us find derivatives quickly.

Defining the derivative of a function and using derivative notation Learn Formal definition of the derivative as a limit

A function is like a machine that takes an input and gives an output. Let's explore how we can graph, analyze, and create different types of functions. Unit guides are here! Power up your classroom with …

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to …

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.

Honestly, i thought translations, rotations, reflections and dilations would be hard as i just came from 7th grade. Turns out it's easier than the 7th grade math, Lol- Also, Has math always been this easy or is …

Well, we can also define it, especially something like an arithmetic sequence, we can also define it recursively. And I want to be clear-- not every sequence can be defined as either an explicit function …

This was kind of an interesting way to define a function, a way to kind of munch on these numbers. But I could have done this with traditional equations in some way, especially if you allowed me to use the …