April 2026
Beginner
288 pages
5h 34m
English
Content preview from Probability Workbook For Dummies
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 12
Probability’s Role in Confidence Intervals and Hypothesis Tests
IN THIS CHAPTER
Seeing how probability is involved in confidence intervals
Exploring where probability comes into play in hypothesis testing
In this chapter, you explore how probability plays a role in two major types of inferences in statistics (where you move from sample results to generalizations about the population): confidence intervals and hypothesis tests.
A confidence interval is used when you have a population parameter (a value, usually unknown, that summarizes the population, such as the population mean or population proportion of yeses) and you want to estimate it. For example, what is the average price of gas in the United States?
A hypothesis test is a test about a population parameter value, such as the population mean or proportion of yeses. For example, is the mean gas price in the United States equal to a certain value, or is it higher than that? Probability is involved in both situations; this chapter shows you how.
Reviewing Confidence Intervals and Probability
Probability is present in nearly every topic in statistics, but none more so than the two types of inference: confidence intervals and hypothesis tests. In this section, you see where probabilities come into play regarding ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.