Describing a list of numbers.
Mean, median, mode, range, quartiles, variance and standard deviation from your own numbers, exact where they can be and with the working.
By Suraj Kumar3 min read
Paste your numbers and every common measure is worked out at once.
The middle.
The mean is the sum over the count, the median the middle once sorted and the mode the most common value. Sums and means are exact fractions, so 0.1 + 0.2 is 0.3.
The spread.
Range, quartiles, variance and standard deviation, for a sample or a whole population, with the working on your own numbers.
Which quartiles.
There are at least nine ways to work out quartiles (Hyndman and Fan, 1996). The page uses the straight-line one that Excel's QUARTILE.INC and NumPy share, and says so.
Further reading
Topics: statistics calculator · descriptive statistics · standard deviation · quartiles · five number summary
A little less theory. A little more doing.
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