April 2019
Beginner to intermediate
880 pages
27h 3m
English
Content preview from Microsoft Excel 2019 Data Analysis and Business Modeling, 6th Edition
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Chapter 69 An introduction to random variables
Questions answered in this chapter:
What is a random variable?
What is a discrete random variable?
What are the mean, variance, and standard deviation of a random variable?
What is a continuous random variable?
What is a probability density function?
What are independent random variables?
In today’s world, the only thing that’s certain is uncertainty. In the next nine chapters, I’ll give you some powerful techniques that you can use to incorporate uncertainty in business models. The key building block in modeling uncertainty is understanding how to use random variables.
Answers to this chapter’s questions
What is a random variable?
Any situation whose outcome is uncertain is called an experiment ...
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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.