Real math help.
How Do You Find the Mean of a Data Set?
Note:
Mean is just another name for average. To find the mean of a data set, add all the values together and divide by the number of values in the set. The result is your mean! To see an example of finding the mean, watch this tutorial!
Background Tutorials
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Mean
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What is the Mean of a Data Set?
When you think of the mean of a data set, think of the word average. 'Mean' and 'average' are the same thing when you're talking about a set of data! This tutorial introduces you to mean and shows you how to find it!
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Further Exploration
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Mean and Median
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How Do You Find the Median of a Data Set?
The median of a data set is the number that is the middle value of the set. It's easy to find the median if you first put the numbers in order from least to greatest. In this tutorial, see how to find the median of a data set, and see what to do if there are two middle values!
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Variability
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How Do You Find the Range of a Data Set?
The range of a data set is the difference between the largest number and the smallest number. In this tutorial, you'll see how to find the range of a set of data. Check it out!
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Mode, Relative Frequency Tables, and Percent Bar Graphs
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How Do You Find the Mode of a Data Set?
The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode! Follow along with this tutorial and see how to find the mode of a set of data.
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