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 …

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.

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!

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.

Learn Statistics intro: Mean, median, & mode Mean, median, & mode example Calculating the mean

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. Sum up these …

Sal continues on from the previous video to derive the mean and variance formulas for the Bernoulli distribution.