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.

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 …

Learn how to calculate the mean by walking through some basic examples & trying practice problems.

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

Practice finding the median of a data set. Like the mean, the median gives us a sense of the middle, or center, of the data.

Explore how we can think of the mean as the balancing point of a data distribution. You know how to find the mean by adding up and dividing. In this article, we'll think about the mean as the balancing point. …

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!

Practice calculating the mean (average) of a data set. The mean gives us a sense of the middle, or center, of the data.

Practice calculating and interpreting the mean and standard deviation of a discrete random variable.

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