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 about mean, median, and mode with Khan Academy's comprehensive review of these fundamental concepts in statistics.

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 I were to say 2 to the fourth power, what does that mean? Well that means 2 times 2 times 2 times 2. 2 multiplied or repeatedly multiplied 4 times, and so this is going to be 2 times 2 is 4 times 2 is 8, times …

The arithmetic mean is just the regular old mean, or average. To get it, you sum up all the values and divide by n. The reason why it is sometimes called the arithmetic mean is that there are some other …

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 …

When you have a missing piece in your math problem like that, you can put a letter in it to help. Once you get the answer though, make sure to get rid of the letter unless it’s needed for the problem.

Learn Formal definition of the derivative as a limit Formal and alternate form of the derivative Worked example: Derivative as a limit Worked example: Derivative from limit expression

Here we give you a set of numbers and then ask you to find the mean, median, and mode. It's your first opportunity to practice with us!