Measures of central tendency 

The measures of central tendency are the mean, median and mode of a set of data. Find some lessons and calculator below. For a more comprehensive coverage of statistics, check the statistics made easy site.

Measures of central tendency

Mean: The mean is the sum of the values in the set divided by the number of items in the set. There is basically no difference between the mean, the arithmetic mean, and the average. In statistics, the term 'mean' is used instead of 'average'

For example, what is the mean for 2, 4, and 6?

(2 + 4 + 6)/3 = 12/3

(2 + 4 + 6)/3 = 4

Mode: The mode of a set of data is the value or values that occur more often.

For example, the mode of 6, 5, 2, 3, 5, 1, 8 is 5 because 5 appears more often than the other values.

Median: The median of an ordered set of data is the value in the middle.

For example, the median of 4, 6, 8, 10, 12 is 8 since 8 is the value in the middle.

Check the lessons below to learn more about measures of central tendency 

Finding the average
Check this lesson to practice finding the average, also called arithmetic mean or simply mean.

Average calculator
Enter your numbers and this calculator will easily help you find the mean or the average.

Mode of a set of data
Practice a little more with this lesson about finding the mode. 

Mode calculator
This calculator will find the mode of a set of numbers.

Finding the median
The median is the value in the middle when the set is ordered from least to greatest or from greatest to least. Learn more with this lesson.

Median calculator
This calculator will find the median of a set of numbers.

Other lessons related to measures of measures of tendency

Standard deviation
Lesson on how to find the standard deviation.

Standard deviation problems
Solution to some interesting standard deviation word problems.

Standard deviation calculator
This calculator will compute the standard deviation of a set of numbers.

Box and whiskers plot
Box and whiskers plot: Learn how to construct a box and whiskers plot for a set of data using the median.

Stem and leaf plot
Learn how to organize data with a stem and leaf plot.

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