Here, in particular, you would be learning about confidence intervals – what is a confidence interval, what is the process of constructing confidence intervals, the difference between one-sided confidence interval and two-sided confidence interval and most importantly, how to interpret confidence intervals?
In this article, you will learn about some of the useful concepts in statistics like quartiles and the Interquartile Range (IQR). These concepts allow graphical representation of several probability distributions and also help create box and whisker plots, which are an effective way to represent and compare data.
Describing distributions is one of the key skills you’ll need to earn a high score on the AP® Statistics exam. If you need proof of this, just flip through some past exam questions, which can be found at the CollegeBoard website. You’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.
Dealing with the stats part of the AP® Statistics exam can be intimidating enough on its own, but on top of that, you are probably discovering that there’s enough confusing vocabulary to make your head spin! Take the median, for example – along with its siblings mean and mode; they make up the “measures of central tendency,” and like any family members, they can be tough to tell apart.
As one of the core skills in AP® Statistics, z-score calculations require you to combine much of what is covered in the first half of the course. Use this AP® Statistics review to be sure you understand everything you need to beat z-score questions on the exam.
Statistics has a habit of taking words that we know and love, and turning them into something else completely. Take the range, for example. While this term may make you think of the old tune “Home on the Range,” the definition of range in math involves way fewer deer and antelope.
In this article, we will explore various types of data, methods of data collection and advantages and disadvantages of each. After reading our review, you will have an excellent understanding of when to use each of the data collection methods we discuss.
At first glance, the free response questions (FRQ’s) may seem like the most intimidating part of the AP® Statistics exam. Essay questions on a math test?
The FRQ section consists of five short answer questions and one investigative task. This portion takes ninety minutes and is half your exam score. Here are some tips for studying beforehand and for how to approach the test itself.
The German Tank Problem is a famous statistical problem that helped the Allied Forces during World War II, and can help you with your AP® Statistics review. Statisticians use estimators when dealing with samples from a larger population. Often, it can be useful to know the size of the total population when you are working with a limited sample size from a population of unknown size.