New Chapters:

• Chapter 6: Regression
• Chapter 7: Analysis of Variance (ANOVA)

New Changes:

• Cauchy Distribution and Laplace Distribution in Chapter 1
• Negative Binomial (Pascal) Distribution in Chapter 2
• Fixed Some Minor Errors in Chapters

Chapter 1: Special Continuous Random Variables
Chapter 2: Special Discrete Random Variables
Chapter 3: Confidence Intervals
Chapter 4: Parametric Hypothesis Testing
Chapter 5: Statistical Hypothesis Testing