Free
$0 forever
No card required
- 7 solves per day
- Worked solutions and runnable R
- CSV support inside your coursework
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.
Question 3
Solve
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.
02
Activate
Free tier is on by default — 7 solves/day, no login. Upgrading? Paste your license key in the extension popup.
03
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 on every calc question
When a question needs numbers, statshelpr writes R and executes it on real R servers — you just see the finished answer. Nothing installed, nothing to run, nothing lingering afterward.
A stats course bundle, preloaded
tidyverse, mosaic, moderndive, infer, broom, ggplot2 — preinstalled and ready before your first solve.
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.
R libraries · preinstalled
tidyverse
mosaic
moderndive
infer
broom
ggplot2
> grades <- read.csv("grades.csv")
# attached from your popup uploads — 42 rows × 5 cols
> t.test(score ~ section, data = grades)
t = -1.87, df = 39.2, p-value = 0.069
95% CI: [-6.91, 0.27] · means: 78.4, 81.7
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.
Real R execution
For computation-heavy questions, statshelpr writes R, runs it on real R servers, and reads the output — answers come from computation, not guesses.
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 and CSVs are used for the solve, never retained.
Simple pricing
Try it free. Upgrade when you need more.
Seven solves every day are free. Unlimited is one recurring monthly plan with no code to enter.
Unlimited
$19.99$14.99 / month
Save $5 every month while subscribed. Join by September 5.
- Unlimited solves
- Early bird rate renews while your subscription stays active
- Cancel anytime
The early bird discount is applied automatically at checkout. No coupon code needed.
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: 7 solves per day, no card required. Paid: $14.99/month at the early bird rate through September 5, 2026 (normally $19.99/month), cancel anytime.
On statshelpr’s servers. When a question needs computation, statshelpr writes R code, runs it in a real R environment with common stats packages preinstalled (tidyverse, mosaic, moderndive, infer and friends), and interprets the output into a worked answer. Your browser never runs any code — you just see the result.
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.