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### Normal Random Variables

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• Intro 0:00
• Objectives 0:08
• The Empirical Rule 0:28
• 68%
• 95%
• 99.70%
• The Empirical Rule, Cont. 2:31
• The Empirical Rule, Cont.
• Example I: The Empirical Rule 3:24
• Z-Score 8:17
• Z-Score
• Example II: Z-Score 10:08
• Using the Normal Table 13:03
• Using the Normal Table
• Using the Normal Table, Cont.
• Example III: Using the Normal Table and Z-score to Calculate Probability 16:01
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Probability Using the Normal Table
• Example IV: Using the Normal Table and Z-score to Calculate Probability 20:29
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Probability Using the Normal Table
• Example V: Using the Normal Table and Z-score to Calculate Probability 27:20
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Probability Using the Normal Table
• Example VI: Using the Normal Table and Z-score to Calculate Probability 34:00
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Probability Using the Normal Table
• Example VII: Using the Normal Table and Z-score to Calculate Probability 41:21
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Probability Using the Normal Table
• Example VIII: Calculate the Standard Deviation of the Random Normal Variable 49:54
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Standard Deviation
• Example VIII: Calculate the Mean of the Distribution 55:11
• Step 1: Sketch
• Step 2: Calculate Z-score
• Step 3: Solve for Mean