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
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
Finding the average
will help you practice.
Enter your numbers and this calculator will find the average
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
The mode is the value or values that occur most often in a set.
This calculator will find the mode of a set of numbers
Finding the median
is the value in the middle when the set is ordered from least to greatest or from greatest to least.
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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