Statistics Calculator
Enter a series of numbers separated by a comma or space to instantly discover its descriptive data profile, including measures of central tendency.
Descriptive Statistics
Enter numbers separated by commas or spaces.
Mean (Average)
18
Median
15.5000
Mode
None
Range
38
Sum
108
Count (n)
6
Min / Max
4 / 42
Geometric Mean
13.9655
Understanding Descriptive Statistics
Descriptive statistics are summary coefficients that allow us to comprehend a large volume of data in a simplified form. They do not allow us to draw conclusions beyond the data we have analyzed or reach conclusions regarding any hypotheses, but they are a powerful tool for discovering patterns.
The Three Measures of Central Tendency
- Mean (Average): The most common metric. It is calculated simply by adding up all the numbers in the dataset and then dividing the cumulative sum by the total count of numbers.
- Median: The exact middle value when the data set is ordered sequentially from least to greatest. If there is an even total count, the median is the average of the two middlemost numbers. The Median is highly resistant to extreme outliers in your data (like a single billionaire skewing neighborhood income data).
- Mode: The value that appears most frequently in a data set. A data set may have one mode (unimodal), multiple modes (bimodal or multimodal), or no mode at all if every value occurs equally.
Measures of Dispersion
The Range calculates the difference between the absolute highest value (Maximum) and absolute lowest value (Minimum) in your set. This immediately visualizes the spread and volatility of the provided data points.