AP Stats Calculator Policy

The AP Stats calculator policy is the set of rules from the College Board that says which calculators you can use on the AP Statistics exam. In short, you may use an approved graphing calculator, but not a device that connects to the internet or does symbolic algebra for you. The wrong calculator can cost you time, marks, or even your score.

Allowed Calculators for the AP Statistics Exam

The College Board lists approved models in the Course and Exam Description and on its calculator policy page. These models cover every function you need in AP Statistics, from normal and binomial probabilities to confidence intervals, hypothesis testing, and statistical inference.

TI-84 Plus and TI-84 Plus CE. The most common choices in AP Statistics classes. Both have normalcdf, invNorm, binompdf, binomcdf, T-Test, chi-square tests, and LinRegTTest. The CE has a colour screen and a rechargeable battery; the older TI-84 Plus runs on AAA batteries.

TI-83 Plus. Still allowed. It is slower, with a smaller screen than the TI-84 Plus CE, but it runs the same core statistics functions. If you already own one and it works well, you do not need a new calculator for the exam.

TI-Nspire (non-CAS only). The TI-Nspire CX and CX II in non-CAS versions are allowed. CAS stands for Computer Algebra System, and the CAS version is not allowed. Check the front of your calculator: if it says CAS, leave it at home on exam day.

Casio fx-9750GII and fx-9860GII. These Casio graphing calculators are also approved and are often cheaper than TI models. They include distribution, test, and regression functions. Learn where the statistics menus are before the exam, as the button layout differs from TI.

Check the exact model name: TI-Nspire is allowed, but TI-Nspire CAS is not.

Calculators That Are NOT Allowed

CAS calculators. Any calculator with a Computer Algebra System is banned, including the TI-Nspire CAS, TI-89, and TI-92. A CAS calculator can simplify expressions and solve equations symbolically. The AP Statistics exam tests your understanding, not your ability to let a device do the algebra.

Phones, tablets, and laptops. You may not use a phone, tablet, laptop, smartwatch, or any device with internet access, even only as a calculator. Your phone must be switched off and put away, as directed by your proctor.

Calculators with internet, wireless, or a QWERTY keyboard. A graphing calculator with a full QWERTY keyboard, wireless communication, or built-in internet is not allowed. The same applies to one that can store large amounts of text, such as full notes, unless its memory is cleared as your school requires.

A borrowed model you have never used. A spare may be offered if yours fails, but do not count on a model you have never practised with. If you are unsure about your model, ask your teacher.

Rules for Section I and Section II

Section I has 40 multiple-choice questions in 90 minutes. A graphing calculator is allowed throughout, but it is not needed for every question. Many questions test whether you can read a graph, interpret a p-value, or choose the right test. Use the calculator for probabilities, test statistics, and confidence intervals, not for reasoning the question should do.

Section II has six free-response questions in 90 minutes: five short questions and one investigative task. A graphing calculator is allowed here too. The key rule is that your calculator can give you a number, but it cannot give you the answer on its own. You must name the procedure, check the conditions, state the test statistic and p-value or the interval, and write a conclusion in context. A bare number with no explanation will not earn full credit, even if it is correct. The calculator does the arithmetic. You do the statistics.

What to Do If Your Calculator Fails on Exam Day

Tell your proctor right away. Do not spend ten minutes trying to fix the problem while the clock runs. Bring spare batteries if your calculator uses them, and charge a rechargeable calculator the night before. Keep working with what you have: many questions can be started without a calculator by stating the procedure and conditions and setting up the formula. Do not borrow a phone or another banned device, even for a minute.

How to Check Your Calculator Before the Exam

Do this check at least a week before exam day, so you have time to fix any problem.

1. Confirm the model. Read the name on the front. Make sure it matches an approved model and is not a CAS version.
2. Test the main functions. Run normalcdf, binompdf, a t-test, a chi-square test, and a linear regression on a practice data set.
3. Check the battery and screen. Replace weak batteries, charge a rechargeable model, and check the screen and keys.
4. Clear the memory if your school asks you to. Follow your school’s instructions.
5. Practise with the same calculator you will use on the day. Do at least one full timed practice set with that exact model.

Frequently Asked Questions

Can I use a TI-84 Plus CE on the AP Statistics exam?

Yes. It is one of the most widely used approved graphing calculators for AP Statistics, and it is allowed in both Section I and Section II.

Is the TI-Nspire CAS allowed?

No. It is not allowed, because it has a Computer Algebra System. Use the non-CAS TI-Nspire instead.

Can I use my phone as a calculator if my graphing calculator breaks?

No. Phones are not allowed in the exam room as calculators, even in an emergency. Tell your proctor, and use a spare approved calculator if one is available.

Do I need a graphing calculator for every AP Statistics question?

No. It helps with probabilities, tests, and intervals, but many questions test your understanding of data, design, and interpretation. You need both a working calculator and a clear understanding of the statistics behind it.

Conclusion

The AP Stats calculator policy exists to keep the exam fair. Bring an approved graphing calculator, know its menus, charge it or bring spare batteries, and use it to support your statistical thinking, not to replace it.

Practise the same functions for free with the Ap Stats Calculator on www.apstatscalculator.com. Try a normal distribution, a binomial probability, a t-test, or a confidence interval, and check your answers against your graphing calculator before the exam.

Disclaimer: AP is a trademark of the College Board, which was not involved in the production of this site. Always check the latest College Board calculator policy before exam day, because approved models and rules can change.