How do I enter my data?

Paste or type numbers separated by commas, spaces or new lines - any mix works. Weights, X and Y lists follow the same rules.

Sample or population standard deviation?

Both are shown. Sample (n − 1) is highlighted and is what you want for data drawn from a larger population; population (n) is in the details.

What does Pearson r mean?

r measures linear correlation from -1 (perfect negative) through 0 (none) to +1 (perfect positive). R² tells you the share of variance the fit explains.

Is my data sent anywhere?

No. Every calculation runs locally in your browser - nothing is uploaded or stored outside your own device history.

Statistics & Probability Calculator - Mean, Std Deviation, Correlation

Paste any dataset and get mean, median, mode, standard deviation, quartiles, correlations, binomial probabilities and live charts - instantly.

Inputs

Results

Enter your values - results update instantly.

How This Was Calculated

Assumptions

Recent Calculations

Descriptive Statistics in One Paste

AiLoveKit's statistics calculator takes a raw list of numbers - pasted straight from a spreadsheet - and returns the full descriptive picture: mean, median, mode, range, sample and population standard deviation, variance, quartiles, IQR, MAD and coefficient of variation, plus a histogram of the distribution.

Probability and Relationships Built In

Probability - permutations, combinations, factorials, binomial P(X = k), cumulative P(X ≤ k) and expected value.
Relationships - Pearson correlation, sample covariance and least-squares linear regression with a scatter plot and fitted line.
Extras - weighted averages and z-scores computed alongside your dataset.

Everything updates as you type, every result shows its working, and nothing leaves your browser. Need money math instead? Try the Financial Calculator.