Average, mean, average, mean. They are the same thing. So just use the formula for finding the average of a set of numbers to get the mean. Add up the value of the terms and then divide by the number of terms in the data set. There's the...

The teacher gives a very thorough explanation of numerical or quantitative data being anything where the answer to a question would be a number. Whereas any other answer might be considered categorical. She shows several different ways...

What is range and how do you find it? The range is the difference between the largest number and smallest number in a data set. Duane explains that to find the difference you simply subtract. A short, sweet, and effective tutorial.

A video presentation in which two MIT Ph.D. students take a look at how averages can be misunderstood, or the "flaws of averages." Using a few real life examples, the students apply knowledge of these "flaws" when examining functions....

Mean is another word for average. Learn how to determine the mean from a set of data. Watch this tutorial for an example. [3:13]

This video begins with a couple of examples on how to calculate averages using whole numbers. Then it applies this skill to solving algebra problems that involve averages. Practice problems available. [8:37]

Video explains the different measures of center: arithmetic mean, median, and mode. Gives examples of finding each measure of central tendency and discusses the effect of outliers on each. Includes a link to additional practice problems....

This lesson will demonstrate how to solve mixture problems using weighted averages. Student watch a video tutorial and then can take an online quiz.

This lesson will demonstrate how to solve uniform motions problems using weighted averages. Student can watch a video tutorial and then take an online quiz.

To figure out how to find the average to just about anything, take a look at this tutorial about averages. [6:08]

Tutorial explains 'mean' or 'average' and shows how to find it. [4:05]

The median of a data set is the number that is the middle value of the set. You can find this by putting the numbers in order from least to greatest. Watch this tutorial to see how to find the median of a data set. [3:53]

Video briefly talks about types of statistics. Gives demonstration of how to find arithmetic mean, median and mode of a set of numbers. Discusses how well each measure represents the data set. Includes link to practice problems. [12:34]

Introduction to descriptive statistics and central tendency. Gives demonstration of how to find arithmetic mean, median and mode of a set of numbers.

This video tutorial demonstrates how to find missing coordinates using the midpoint formula. The lesson includes a detailed example of the skill.

This video lesson demonstrates how to calculate the mean for a set of data. Students can check their understanding with an assessment.

This video lesson demonstrates how to find the mean of a data set. It includes detailed examples about when it is appropriate to find the mean.

Explore how to find the mean, the average, of given data. Take a quiz to assess understanding.

This lesson will introduce the meaning of weighted average, and demonstrate how to solve for the weighted average of a data set. Student watch a video tutorial and then can take an online quiz.

This video [8:54] explains the different measures of center: arithmetic mean, median, and mode.

This video provides examples of word problems that discuss how to find an average. [4:01]

This QuickTime movie offers several examples that illustrate the statistical concept, mean or average, using data from a graph. A pdf worksheet is available by clicking on the hyperlink at the bottom of the page. As you watch and listen...

From the MathFLIX Series, this Quick-Time movie builds on student knowledge of the concepts of mean, median, and mode. In this interactive discussion, teacher and student go step by step through the data analysis process to identify...

This video describes how to calculate a new average given the old average, the number of data items, and a new data item.