Mean, median, and mode review - Khan Academy
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.
Calculating the median (practice) | Khan Academy
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.
Mean, median, & mode example (video) | Khan Academy
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!
Statistics intro: Mean, median, & mode (video) | Khan Academy
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 …
Calculating the mean (article) | Khan Academy
Learn how to calculate the mean by walking through some basic examples & trying practice problems.
Mean, median, and mode (practice) | Khan Academy
Calculate the mean, median, or mode of a data set!
Calculating the mean (practice) | Khan Academy
Practice calculating the mean (average) of a data set. The mean gives us a sense of the middle, or center, of the data.
Finding Mean of Grouped Data (video) | Khan Academy
In this video we learn about the first basic method to find the mean of grouped data.
Standard error of the mean (video) | Khan Academy
Take a sample from a population, calculate the mean of that sample, put everything back, and do it over and over. How much do those sample means tend to vary from the "average" sample …
Mean and standard deviation of a discrete random variable
Practice calculating and interpreting the mean and standard deviation of a discrete random variable.