AP Calculus AB. Important Concepts not on the AP Statistics Formula Sheet Part I: IQR = Q 3 – Q 1 Test for an outlier: 1.5(IQR) above Q 3 or below Q 1 The calculator will run the test for you as long as you choose the boxplot with the oulier on it in STATPLOT Linear transformation: Addition: affects center NOT spread adds to , M, Q 1 , Q 3, IQR not σ We've pulled together 1-page formula sheet PDF with unit summaries for AP Stats. The “hard” formula for the slope is no longer included and the formula for the standard error of the slope has been moved to the sampling distribution and inference section. Formulas for AP Statistics I. Descriptive Statistics 1 i i x x x nn 2 1 2 1 1 i xi x x s xx n n y a bxˆ y a bx 1 1 ii TI-83 Calculator entries cheat sheet for the 2020 AP Statistics exam Website AP Statistics. Important Concepts not on the AP Statistics Formula Sheet Website AP Statistics. Y ou wil l be al low ed t o use the fol lowing resourc es on select Quizzes and Exams a s w e proc eed through the course. AP Biology. In the P(X=x) notation, upper case X represents the random variable and lower case x represents a particular value of the random variable. Units not included in 2020 exam: Units 8–9. Hooray! Updated: Feb 8. This review sheet was created by AP Statistics teachers and students who have passed the exam so you can see the entire course on one page: AP Statistics Formula & Review Chart Please note! Formulas for the geometric distribution, including the mean and standard deviation, are now included. Most of the formulas in this section have been arranged in a table. Stay up to date with the latest information on test dates, AP online review, and what this means for you with our AP COVID-19 FAQ article. Probability and Distributions PA B PA PB PA B (|) PA B PAB PB Probability Distribution Mean Standard Deviation Discrete random variable, X µ X ==EX x Px() ( )¦ This is all fine and dandy, but the experienced AP Stats teachers knew what else was coming: A NEW FORMULA SHEET! Formulas for AP Statistics I. Descriptive Statistics 1 i i x xx nn ∑ =∑= ( ) ( )2 1 2 1 1 i xi xx s xx n n ∑− = ∑− = − − y a bxˆ= + y a bx= + 1 1 ii xy xx y y r n ss −− = ∑− y x s br s = II. There will not be an Investigative Task on the 2020 AP Statistics Exam. Notice that the new formula sheet uses upper case X instead of lower case x. Recently, College Board released the new Course and Exam Description, a 263 page document that clearly outlines the content expectations for the course. The formulas for binomial and geometric probability in the new formula sheet use P(X=x) instead of P(X=k) and replace all instances of k with x. 2020 AP Test Changes Due to COVID-19. Formulas and Tables for AP Statistics I. Descriptive Statistics 1 i i x xx nn ∑ =∑= ( ) ( ) 2 1 2 1 1 i xi xx s xx n n ∑− = ∑− = − − y a bx ˆ = + y a bx ... Normal and all of our formulas for calculating mean and standard deviation of sampling distributions on the formula sheet will hold. Standard errors are designated with the notation s rather than SE like many of us are used to. Formulas for the sampling distributions have been moved to Section III. The equation of the least-squares regression line is now in y = a + bx (as it should be), rather than the y = b0 + b1x form. There is a new note at the end of the formula sheet briefly describing the difference between the standard deviation and the standard error. This is all fine and dandy, but the experienced AP Stats teachers knew what else was coming: Check out this video that walks students through every single formula on the new formula page. The formulas for the sampling distribution of a sample slope are now included.