# Discrete Random Variables

Published: February 4th, 2014

Transcript – All Parts – Discrete Random Variables

Discrete Random Variables – Part A (6:36)

• Slides 1-5
• Introduction to Probability Distribution for Discrete Random Variables
• Keywords and Phrases
• Expected Value = Mean or Average
• Overview of Example A and Example B

## Discrete Random Variables – Part B (9:24)

• Slides 6-12
• Example A – Logical Solution
• P(None are Diabetic)
• P(At least one is Diabetic)
• Sample Space by Hand
• Why Not Equally Likely (Check out Daily Show with Jon Stewart Clip)
• Example A – Create Probability Distribution By Hand and Summarize
• Graph of Probability Distribution

## Discrete Random Variables – Part C (3:07)

• Slides 12-14
• Formulas for the Mean, Variance, and Standard Deviation of a General Discrete Random Variable
• Finding the Mean, Variance, and Standard Deviation for Example A

## Discrete Random Variables – Part D (3:33)

• Slides 15-19
• Example B by Hand
• Example B – Distribution and Mean, Variance (and Standard Deviation) of a General Discrete Random Variable

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