AP Stats score calculator.

In Section I you have 90 minutes for 42 multiple-choice questions, each with four answer choices, and that half is worth 50% of the score. Section II allows the same hour and a half for four free-response questions worth the other 50%, which makes each of them 12.5% of the score by itself. AP readers score every free-response answer out of 10 points on an analytic scale: the scoring guidelines list separate components, and unless a guideline says otherwise, each point is earned on its own. College Board expects a graphing calculator that can do statistics in both sections, and it supplies formulas and tables for the whole exam.

An example: 25 right and 18 of 40 free-response points

Suppose you get 25 of the multiple-choice questions right and earn 5, 4, 6 and 3 points on the four free-response questions, 18 out of 40. That free-response total sits near what students averaged on the old exam. Both kinds of raw points convert at a fixed rate: a correct answer is worth 1.19 composite points, so 25 right gives 29.8, and a free-response point is worth 1.25, so 18 points gives 22.5. Together they make a total composite score of 52.3 out of 100, which is a 4 on our lines (a 4 starts at 47.7, a 5 at 63.3).

A free-response point vs a multiple-choice answer

A free-response point counts a little more than a multiple-choice answer: 1.25 composite points against 1.19, because the free response’s 40 points and the 42 questions each fill half of the 100-point composite. One whole free-response question, at 12.5 composite points, is worth about as much as 10 or 11 correct answers. That’s why a half-finished free-response answer is worth writing out: on an analytic rubric, a correct hypothesis statement or a checked condition can earn its point even when the conclusion goes wrong.

Multiple choice went from 40 questions to 42, and every question now offers four answer choices, down from five. Two sets of three questions share a scenario: probability and random variables in one set, regression in the other. Free response dropped from six questions to four, each worth 10 points instead of 4. Nothing is handwritten anymore: the whole exam happens in Bluebook, with scratch paper and a printed reference booklet still handed out. The halves are still weighted equally, and the exam is still 3 hours long.

The course behind the exam

The course changed with the exam. Units 1 to 8 were folded into five units and Unit 9, inference for slopes, was cut. College Board also dropped the geometric distribution, combining random variables, the chi-square test for goodness of fit and analyzing departures from linearity, added topics on investigative questions, and lowered the prerequisite to first-year algebra. Its stated aim is to match what introductory college statistics courses now teach.

Why 11 of 18 AP Stats calculators still score the old exam

On October 10, 2026, we opened the AP Statistics score calculators that rank on page one of Google and Bing in the US. Of the 18 whose inputs we could read, 11 still model the exam that ended in 2026, with 40 multiple-choice questions and free response on the old 4-point scale, several with a slot for the Investigative Task. A tool like that values each multiple-choice answer at 1.25 points, so 30 correct counts as 37.5 there, while on the real 2027 exam the same 30 is worth 35.7. Nor can it take a 7 out of 10 on a free-response question.

Scoring a 2024 to 2026 practice exam

Almost all released AP Statistics practice is in the old format, and only part of it transfers. For the multiple choice, rescale your count to 42 questions by multiplying by 1.05: 28 right out of 40 becomes 29.4, so enter 29. The free response doesn’t transfer cleanly. Old questions were scored 0 to 4 holistically, the new ones point by point out of 10, and an old 3 doesn’t map onto any single new score, so treat anything you calculate from it as rough. For practice that matches 2027, College Board offers test previews in Bluebook, one new full practice exam in AP Classroom, and sample questions with 10-point scoring guidelines in the course and exam description.

Is 70% a 5 on AP Stats?

Yes. A composite of 70 is past our 5 line of 63.3. If you mean 70% of each half, that’s about 29 multiple-choice questions right and 28 free-response points, a composite of 69.5, which is a 5.

What percent is a 4 on AP Statistics?

A 4 needs a composite between 47.7 and 63.2 on our lines, a score range of roughly 48% to 63% of the available points. A student with about 17 free-response points, near the old exam’s average, reaches a 4 with 23 correct multiple-choice answers.

Is 50% a 3 on AP Stats?

Half of every section, 21 correct answers and 20 free-response points, adds up to 50, which our lines score as a 4. In 2026, 62% of AP Statistics students scored a 3 or higher.

How many AP Stats questions can you miss?

It depends on your free response. With 17 points, a 5 takes 36 correct multiple-choice answers, so you can miss 6; a 4 takes 23 and a 3 takes 12. Push the free response to 20 points and a 5 needs 33 right. A perfect multiple-choice section on its own is worth 50, a 4, and a perfect free response on its own is worth the same 50.

Question 1 is a multi-focus question on the first two practices, which College Board names Formulate Questions and Collect Data. Question 2 turns to the other pair, Analyze Data and Interpret Results, and Question 3 asks for inference: you either run a hypothesis test or build a confidence interval, using Practices 2, 3 and 4. Question 4 draws on those same three practices across several content areas of the course. Our AP Stats FRQ guide covers each type in depth.

What the old free-response averages show

The only free-response figures College Board has published lately are from the old six-question exam, scored 0 to 4, in its 2024 and 2025 scoring statistics, so they can’t predict 2027 scores directly. They do show how hard the free response was. In 2025 the five shorter questions averaged between 1.43 and 2.10 out of 4, and the Investigative Task averaged 1.78. Added up, that’s 10.26 of the 24 available points, about 43%, and 2024 came out almost the same at 10.32. Our model starts from that 43%.

What the chief readers saw in 2024 and 2025

College Board’s chief readers wrote up the same habits in both 2024 and 2025. Answers lose points when they drop the context of the study, such as which population or variable a statement is about. Hypotheses get written in undefined notation, or without naming the population parameter. The name of an inference procedure comes out incomplete, missing words like one-sample, t or interval. Conditions get only half checked. Conclusions forget to compare the p-value with the significance level, or skip saying what the evidence is about. A calculator command written without its inputs isn’t enough to show the work.

AP Statistics has one of the lowest pass rates of any AP exam. Only 62% of the 2026 group reached a 3, and of the 40 exams College Board reported for that year, just Music Theory came in lower, at 59%. Its 21% of 1s ranked second, behind Computer Science A’s 23% and level with Japanese. The 5s were unremarkable at 17%, near the middle of the 40. That shape hasn’t moved much since 2022: the pass rate has stayed between 60% and 62%. The 2025 exam drew 266,791 students, with a mean score of 2.92; the 2026 count and average aren’t out yet.

Is AP Stats the hardest AP?

By pass rate it’s close to the hardest: second from the bottom of 40. The top score tells a different story. AP Statistics gave 5s to the same 17% of students as AP Research, which passed 90%, and to more than AP Seminar, where 10% earned a 5 and 88% passed. A low pass rate here comes from the size of the bottom group, not a shortage of high scores.

Bring a graphing calculator with statistical capabilities: College Board expects one in both sections. Its 2027 policy goes further than before and bans nongraphing calculators outright, so a scientific calculator with built-in statistics functions won’t do. Bluebook has the Desmos graphing calculator built in, and you may also bring as many as two handheld calculators from the approved list. Memories don’t need clearing, and calculators can’t be shared. The exam supplies formulas and statistical tables, and our AP Stats formula sheet page lists what they contain.

A fully digital exam in Bluebook

You answer both sections in Bluebook, which submits everything automatically when time is up. Typing statistics takes some getting used to. College Board has added common statistical symbols to Bluebook’s symbol menu, written the 2027 questions to need as little notation as possible, and published digital response guidelines on entering symbols from an ordinary keyboard.

The composite is exact: 1.19 points for each correct answer and 1.25 for each free-response point, College Board’s 50-50 split on a 100-point scale. The step from that weighted raw score to a predicted AP score is our estimate. College Board hasn’t released any data from the new format, so we started from what it has released: the free-response averages and spread from 2025 (about 43% of the points) and the 2026 score distribution. We simulated 200,000 students with four 10-point questions matching that average and spread, gave them a multiple-choice score that tracks the free response, and read off the composites at which 17%, 23%, 22%, 17% and 21% of them earn each score. That gives our lines: a 5 from 63.3, a 4 from 47.7, a 3 from 35.5 and a 2 from 25.6.

The weakest assumption is the multiple choice. College Board has never published a multiple-choice average for AP Statistics, so the model assumes students do as well there as on the free response. If they actually score 10 points higher on multiple choice, all four lines shift up by roughly 5 and a 5 begins near 68. The analytic rubric may also score differently from the old holistic one. Read any result that sits 2 or 3 points either side of a line as uncertain, and the 2 line as the shakiest. Once College Board publishes 2027 results we’ll refit the model.

Why AP Stats calculators don’t agree

Calculators for this exam rarely agree on where a 5 starts. Most put it between 62 and 72, and one we checked asks for 90. Few say where their cutoffs come from, and the ones that do point to scoring curves from years of the old format. Run them through the same simulated group and the gaps matter: a line at 68 hands a 5 to about 12% of students instead of 2026’s 17%, and a line at 90 to fewer than 1%.

Sources: College Board’s AP Statistics exam page, course and exam description, revisions page, calculator policy, score distributions, scoring statistics and chief reader reports, plus its pages on score setting and equating.