# 7th Grade Math - Mean, Median, Mode, and Range

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This week we're going to focus on organizing and displaying data. Often, when looking at a lot of data, we want one number that somehow captures the essence of the whole. This is known as measuring the central tendency. In fact, there are several measures of central tendency. One is called the mean, or the average. It is when you add all of the numerical values and divide by the total number that you have. Then there is the median, which is the middle value when you order the values appropriately. There is the mode, which is the number that occurs the most. Finally, you have the range, the difference between the largest and smallest numbers.

In today's free 7th grade math video Edward Burger demonstrates the power of Mean, Median, Mode, and Range. You'll learn how to calculate all 4 measurements and work through a couple of examples to reinforce what you learned. The video has a total of 3 lectures, so make certain you click the forward button directly to the left of the time stamp to watch them all.

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Great video! thanks a lot, simple and clear