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 review (article) | 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.
Mean absolute deviation (MAD) review (article) | Khan Academy
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 …
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 …
Mean, median, and mode (practice) | Khan Academy
Calculate the mean, median, or mode of a data set!
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.
Standard error of the mean - 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 …
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.
Summarizing quantitative data - Khan Academy
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 …