Stats tutor for students
Work through your stats coursework
A Chrome extension that shows worked solutions with runnable R code, right on the question. Reads your uploaded CSVs. Free to try, no card required.
A sample of n = 24 students took a memory test before and after a study-skills workshop. The mean score difference was 4.2 (SD = 8.1). At α = 0.05, what should the researcher conclude?
On the question, not in a new tab
Click the dot. Read the reasoning.
A small button appears beside each question on a stats quiz or worksheet. One click streams a worked solution inline — the setup, the logic, and when computation is needed, R code that actually runs.
Activate
Free tier is on by default — 5 solves/day, no login. Upgrading? Paste your license key in the extension popup.
Solve as you go
Open any stats quiz. A small Solve button appears next to each question. Click it — the answer streams inline.
Real computation, not vibes
Runs real R, right in your browser
When a question needs numbers, statshelpr writes R and executes it on your machine via WebAssembly — no server round-trip, nothing installed, nothing lingering afterward.
A stats course bundle, preloaded
tidyverse, mosaic, moderndive, infer, broom, ggplot2 — ready before your first solve. Add your own packages for your course.
Your CSVs, attached to every solve
Upload course data files once in the popup. They persist for 7 days and R can read.csv() them like normal.
Reads charts and formulas too
Questions with images — histograms, boxplots, formula screenshots — are handled, not skipped.
Features
Everything you need, nothing you don’t
Lives inside the quiz
A Solve button appears next to every quiz question. No new tabs, no copy-pasting.
Worked solutions
Not just an answer — the reasoning behind it, streamed as the model thinks.
Runnable R code
For computation-heavy questions, R code runs in your browser via WebAssembly. No server round-trip.
Uses your CSVs
Upload course data files once. They persist across quizzes and attach to every solve automatically.
Reads images
Handles quiz questions with charts, formulas, or embedded images — not just plain text.
Fast and private
Powered by frontier AI. Questions aren’t retained; CSV data stays on your device.
Pricing
Free every day. Unlimited when you need it.
No card to start. One flat price when five a day isn’t enough.
- Worked solutions with reasoning
- Runnable R, in your browser
- CSV uploads & image questions
- Everything in Free
- Unlimited solves — no daily cap
- Cancel anytime
Secure checkout by Lemon Squeezy · cancel from the customer portal, no phone call.
Built for learning. statshelpr is for practice, ungraded homework, and self-study. Always confirm your instructor permits outside help before using it on any graded assessment.
Common questions
FAQ
A Chrome extension that helps you work through stats coursework, including on Canvas quiz pages. It shows a worked solution with reasoning and (when needed) runnable R code inline under the question. Built for practice, ungraded homework, and self-study — always confirm your instructor permits outside help before using it on any graded assessment.
Free tier: 5 solves per day, no card required. Paid: $15/month for unlimited solves, cancel anytime.
Client-side, in your browser. When a question needs computation, statshelpr writes R code and runs it right on your device using an in-browser R engine — common stats packages come preloaded, so most code runs immediately with no server round-trip.
Yes. Upload course CSVs once via the extension popup — they persist across all your quizzes (7-day TTL) and attach to every solve automatically. R code can read.csv() them just like normal.
Question text, images, and CSVs are transmitted to our API on Cloudflare and to Google Gemini for processing. We don’t store quiz content long-term. Your license key lives in chrome.storage.sync. Full details on the privacy page.
Chrome and Chromium-based browsers (Edge, Arc, Brave). Desktop only. Not currently supported: Safari, Firefox, mobile browsers.
Your next quiz has a tutor on it.
Install statshelpr and see the first worked solution in about a minute.