🧮 Statistics calculator

Paste your numbers once. The summary, the graphs, the outliers, the line of best fit and the confidence interval all work themselves out.

A statistics calculator that runs in the page. Type or paste your numbers once and everything below updates: the summary, the histogram, the box plot, outliers, the line of best fit, and the confidence interval. Nothing is sent anywhere.

📋 1. Your data

✏️ Paste the numbers

Commas, spaces or new lines all work. Negative numbers and decimals are fine.

📊 2. One-variable statistics

📈 Everything about that list

📉 3. Two lists: correlation and the line

🔗 Paired data

The box above is your x values. Put the matching y values here, in the same order.

⚖️ 4. Confidence interval and t test

🎯 From the data you pasted

Uses your list above. The test is optional — leave μ₀ empty to skip it.

👥 A proportion instead

For counts, like 48 readmissions out of 200.

🔮 5. Distribution tools

📈 Normal curve

Area under the curve, or work backwards from a percentile.

🎲 Binomial

Fixed number of tries, each one a pass or a fail, same chance every time.

Check anything that matters against your own notes. This follows the conventions your course uses — quartiles by the median-of-halves method, t for means, z for proportions — but if your instructor does one differently, theirs is the one that gets marked.
MAT 300 · built from your own course files (the statistics study guide, the Desmos guide, the formula sheet and the final-exam study questions) with nursing examples. Not a substitute for the textbook — check any number against your own notes before an exam.