How to Use TI-84 Plus CE for Statistics: A Complete Step-by-Step Guide for AP Statistics 2025–2026

Share Share Share Share Email AP Statistics has become one of the most popular AP exams — over 250,000 students took it in 2025. The TI-84 Plus CE is allowed on the entire exam (both sections) and can save you 10–20 minutes if you know these exact keystrokes. Below is the only guide you’ll ever need — updated for the 2025–2026 course and CED.

Type your data into L1, L2, L3 etc. To clear a list fast: arrow up to L1 → CLEAR → ENTER To paste raw data from a PDF: use the free TI 84 Calculator online, copy-paste into the list instantly. 2. One-Variable Statistics (Mean, Median, Q1, Q3, σ, etc.) STAT → CALC → 1: 1-Var Stats Type L1 (2nd → 1) → ENTER You instantly get: x̄ (mean), Σx, Sx, σx, n, Med, Q1, Q3, Min, Max Pro tip 2025: Scroll down twice — you also get the 5-number summary needed for boxplots.

After 1-Var Stats: [2nd] [Y=] → turn Plot1 ON → choose boxplot or histogram icon [ZOOM] → 9: ZoomStat → ENTER Perfect modified boxplot appears (outliers shown as dots — exactly what College Board wants).

Data in L1 & L2 STAT → CALC → 8: LinReg(a+bx) L1,L2,Y1 → ENTER (Y1 is 2nd → 1 → VARS → Y-VARS → 1:Function → 1:Y1) You get a, b, r, r² instantly. Then [GRAPH] to see the line overlaid on scatterplot.

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1. Entering & Editing Data Quickly (Lists) Press STAT → 1: Edit…
2. Boxplots & Histograms in 10 Seconds
3. Linear Regression (Line of Best Fit + r & r²)
4. Normal Distribution Calculations (z-scores & probabilities)

Based on reporting by TechBullion.