. Mean: The mean is just another word for the average. To find the mean of a set of numbers, you add up all the numbers and then divide by how many numbers there are. Here's how you do it: Add up all …

The mean absolute deviation (MAD) is the mean (average) distance between each data value and the mean of the data set. It can be used to quantify the spread in the data set and also be helpful in …

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!

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.

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.

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

To find the Mean Absolute Deviation (MAD), first calculate the mean (average) of your data set. Next, find the absolute difference (distance) between each data point and the mean.

This unit covers common measures of center like mean and median. We'll also learn to measure spread or variability with standard deviation and interquartile range, and use these ideas to determine what …