You’re in luck if you’re going to take the AP Statistics test! You will have access to a formula sheet with numerous important equations during the test. However, for the AP Statistics exam formula sheet to be beneficial, you must first understand what it entails and how to use it. This article will teach you all you need to know about the recently modified formula sheet AP statistics. We’ll go over the exact equations that are included, show you how the formula sheet AP statistics appears, go over a few important equations that aren’t included, and offer you ideas on how to get the maximum out of it.

## What can you find on the AP Statistics Exam Formula Sheet?

To fulfill the demands of students throughout the exam, the formula sheet AP statistics was modified in 2019. On the examination day, you will be handed two pages of statistical formulae. The formulae will appear at the start of both the free-response and the multiple-choice portions of the exam. Therefore, you’ll have access to them throughout the AP exam. That’s amazing since it abolishes the need for you to learn any of these formulas!

Now, what does the AP statistics cheat paper include?

There are three areas on the formula sheet AP statistics: probability and distributions, descriptive statistics, sampling distributions, and inferential statistics.

**Distributions And Probability Formulas**

- Binomial formula
- Mean of binomial distribution
- The expected value of
*X* - Variance of X
- The standard deviation of binomial distribution
- Addition Rule
- Multiplication Rule
- Geometric distribution’s mean
- Geometric distribution’s standard deviation

**Statistics That Have Descriptive Formulas**

- The sample mean
- The standard deviation of the sample
- Line of simple linear regression
- Coefficient of regression
- The correlation coefficient for samples
- Coefficient of regression

**Sampling Distributions and Inferential Statistics Formulas**

- Standardized test statistic
- Confidence interval
- The standard deviation of the sampling distribution of the mean
- The standard deviation of the sampling distribution of the proportion
- The standard deviation of the proportion
- The standard deviation of the difference in sample proportions
- The standard deviation of the sample mean
- Chi-square test statistic
- Standard error of regression slope
- The standard deviation of the difference in sample means
- Mean of the sampling distribution of the proportion
- Mean of the sampling distribution of the mean
- Sampling distribution of a sample slope

### What Should You Know That Isn’t on the AP Statistics Reference Sheet?

The AP Statistics exam formula sheet has almost all of the equations you’ll need for the exam, but there are a few things they’ve left off that can come in helpful on test day. The most important of them are listed below. Remember these since they will not be mentioned on the formula sheet AP statistics!

#### Descriptive statistics

**Interquartile Range (IQR)**

The interquartile range (IQR), is the middle 50% of values when sorted from lowest to highest. The IQR is calculated as the difference between the 75th and 25th percentages, or the 1st quartile minus the 3rd quartile. The IQR is used to exhibit dispersion and may be a helpful approach to depict data in histograms, box plots, scatterplots, and so on.

Equation: IQR = Q3-Q1

You may also use IQR to see whether there is an anomaly. If a data point is more than 1.5 x IQR below or above Q3, it is considered an outlier, according to a frequently used algorithm.

**Residuals**

The residual (e) is the difference between the anticipated and observed values (y ̂) of the dependent variable (y). It is employed in regression analysis. There is one residual for each data point.

Formula: e = y -( y) ̂

The total of residuals and the mean of residuals are both equivalent to zero.

Σe = 0 and e = 0.

**Probability**

The Theorem of Bayes

The Bayes theorem may be used to calculate conditional probabilities. When attempting to determine the likelihood of an occurrence given that another event has already occurred, you will employ conditional probability.

Conditional probability questions typically take the form “Given x, what is the likelihood that y occurs?” To solve them, apply Bayes’ theorem.

**How to Make the Most of the Formula Sheet AP Statistics**

As you can see, the AP Statistics exam formula sheet may be quite handy during the test because it saves you from having to memorize extensive lists of equations. However, there are several pointers to help you get the most out of it, and we’ll go over the three most crucial in this part.

**Understand How to Apply the Formulas**

It may seem apparent, but it’s all too simple to peek over the AP Statistics cheat sheet and move on, knowing you’ll have it with you on the exam. However, exam day is not the time to figure out what the various formulae represent or how to employ them.

Be careful to look over each formula on the sheet well before exam day to ensure you understand it and know how to utilize it. Each of these formulae is included in the AP statistics formula sheet by the College Board because they believe they are crucial for performing well on the AP Statistics exam, so you should trust them and make sure you know them!

**Understand Calculator Shortcuts**

You are permitted to use a graphing calculator for the test duration, and you should take advantage of some of its useful features. Calculator shortcuts might help you save time on the exam by swiftly solving key AP Statistics equations and retrieving data points. They also provide a means for you to examine your work for errors. Stanford provides a useful collection of calculator shortcuts for your graphing calculator.

However, there are two cautions which are as follows:

- Don’t become so reliant on your calculator that you forget how to solve problems or the reasoning behind them on your own.
- You should largely employ calculator shortcuts for the exam’s multiple-choice questions when you only need to choose the proper answer choice.

You’ll need to illustrate all of the work you performed for each question in the free-response part of the test, and merely noting which shortcut you typed into your calculator won’t be enough. Use the shortcuts mostly to double-check your free-response work.

**Take Practice Exams UtilizingUtilizing the Formula Sheet**

Answering practice questions and completing practice tests utilizing the AP Statistics exam formula sheet is essential for clearing the exam. Before the actual exam, you should take numerous practice AP examinations, and for each of them, you should utilize the official formula sheet AP statistics. Your teacher will also most likely provide you with a copy of the formula sheet AP statistics for your in-class tests so that you may practice there as well.

**Using the AP Statistics Formula Sheet: Summary**

The AP Statistics reference sheet may be useful during the exam, but only if you already know what it contains and how to apply it. The formula sheet AP statistics consists of three pages of helpful equations in probability, descriptive statistics, and inferential statistics.

While this AP Statistics cheat sheet does not cover all you’ll need to know, it does cover several crucial AP Statistics equations that you’ll need to master for the exam.

To get the most out of the formula sheet AP statistics, make sure you know all of the formulae, learn some handy calculator shortcuts, and practice exams using the AP Statistics reference page.