A very short story by Peter J. Sherman
This is a retro-story about high school, and all the things that teenagers begin to experience. But more than that, it is a story about random variables. What in the world is a random variable?
Preliminaries & Recommendations
Discuss possibility of M, T, R classes of 65 min.
Recommendation #1: Include major points and concepts in class notes taken during class. Then go home and re-write and exp
CHAPTER 3 Probabilities Associated with Random Variables
We will revisit random variables again in the next chapter. But now it is time to complete the overall picture. We started with the notion of a random variable and its associated sample space. We th
Events and the Field of Events
The structure of this course follows a natural progression. We begin with the concept of a random variable, since it is an action that results in numbers. If the action is sufficiently known, then one can identify
More on Re-Casting Problems in Terms of Random Variables
Example 1 (13.44 on p.427) The problem statement is as follows: In a study of the effectiveness of certain exercises in weight reduction, a group of 16 persons engaged in these exercises f
Lecture 3 Re-Casting Classic Textbook Problems in Terms of Random Variables
Example 1 (2.36) An electronics firm plans to build a new research laboratory in Southern California, and its management has to decide between sites in Los Angeles (LA), San Diego
A Working Definition of a Random Variable.
If the reader here has read the Preface, then it should be no surprise that this chapter will address the concept of a random variable from a variety of perspectives, ranging from very intuitive, to
Lecture 5 An In-Class Example of Indentifying Random Variables from Data
In this lecture we will, as a class, arrive at the random variables that resulted in the numerical data below, for the first exam in the Spring 2008 STAT 447 class. Please attempt to
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Device CD DVD
Cost per bit
hard disks static memory(SRAM) dy