December 2021
Beginner to intermediate
1168 pages
30h 17m
English
book
Microsoft Excel Data Analysis and Business Modeling (Office 2021 and Microsoft 365), 7th Edition
by Wayne Winston
Content preview from Microsoft Excel Data Analysis and Business Modeling (Office 2021 and Microsoft 365), 7th Edition
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Chapter 50
Using correlations to summarize relationships
Questions answered in this chapter:
How are monthly stock returns for Microsoft, GE, Intel, GM, and Cisco related?
What is the relationship between correlation and R-squared?
How does correlation relate to regression toward the mean?
Trend curves are a great help in understanding how two variables are related. Often, however, you need to understand how more than two variables are related. Looking at the correlation between any pair of variables can provide insights into how multiple variables move up and down in value together.
The correlation (usually denoted by r) between two variables (call them x and y) is a unit-free measure of the strength of the linear relationship between x
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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.