# Measures of central tendency

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

Mean:
The mean is the sums of the values in the set divided by the number of items in the set

There is basically no difference between the mean and the average.

In statistics, the term 'mean' is used instead of 'average'

The mean for 2, 4, and 6 is (2 + 4 + 6)/3 = 12/3 = 4

Average calculator
Enter your numbers and this calculator will find the average

Standard deviation
Lesson on how to find the standard deviation

Standard deviation problems
Some standard deviation word problems

Standard deviation calculator
This calculator will compute the standard deviation

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

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.

Median calculator
This calculator will find the median 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 stems and leaves.

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