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About the Statistics Calculator
This calculator computes core descriptive statistics for a set of numbers. Enter your data once and get the count, sum, mean, median, mode, range, variance, standard deviation, skewness, and kurtosis in one result panel.
The calculations follow the standard method of moments. The mean is the sum of values divided by n, and the variance is the average squared deviation from that mean. Skewness comes from the third central moment divided by the standard deviation cubed, and kurtosis uses the fourth moment to measure tail weight. Paste data separated by commas, spaces, or line breaks, and scan for outliers first because a single extreme value can shift the mean and inflate the variance.
- Collect your numbers from a spreadsheet or notes.
- Paste or type them into the input box, separated by commas or new lines.
- Press calculate and read each statistic from the results table.