# Random Variables von David Spade, PhD

### Über den Vortrag

Der Vortrag „Random Variables“ von David Spade, PhD ist Bestandteil des Kurses „Statistics Part 1“. Der Vortrag ist dabei in folgende Kapitel unterteilt:

• Random Variables
• Expected Values
• Properties of Variances

### Quiz zum Vortrag

1. A numeric value based on the outcome of a random event is known as a random variable.
2. A numeric value based on the outcome of a random event is known as a probability model.
3. A numeric value based on the outcome of a random event is known as an expected value.
4. A numeric value based on the outcome of a random event is known as a random phenomenon.
5. A numeric value based on the outcome of a random event is known as a unique variable.
1. The expected value of X is 0.
2. The expected value of X is 1.
3. The expected value of X is -1.
4. The expected value of X is 3.
5. The expected value of X is 1/3.
1. The variance of X is 2.
2. The variance of X is -1.
3. The variance of X is 0.
4. The variance of X is 5.
5. The variance is -2.
1. The expected total is 0 and the variance is 4.
2. The expected total is 0 and the variance is 0.
3. The expected total is 1 and the variance is 4.
4. The expected total is 0 and the variance is 2.
5. The expected total is 1 and the variance is 2.
1. For any two independent random variables X and Y, Var (X+Y) = Var (X) + Var (Y).
2. For any two random variables X and Y, SD (X+Y) = SD (X) + SD (Y).
3. For any two independent random variables X and Y, SD (X+Y) = SD (X) + SD (Y).
4. For any two random variables X and Y, Var (X+Y) = Var (X) + Var (Y).
5. For any two random variables X and Y, Var (X+Y) = Var (X) * Var (Y).

### Dozent des Vortrages Random Variables

Dr. David Spade is an Assistant Professor of Mathematical Sciences and Statistics at the University of Wisconsin-Milwaukee and holds a courtesy appointment as an Assistant Professor of Statistics at the University of Missouri-Kansas City, USA.
He obtained his MS in Statistics in 2010 and then completed his PhD in Statistics from Ohio State University in 2013.
An experienced mathemathics instructor, Dr. Spade has been teaching diverse statistics courses from the introductory to the graduate level since 2007.
Within Lecturio, he teaches courses on Statistics.

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