This chapter introduces/reminds you basic statistical concepts and definitions that you must know before learning econometrics.

This is a note for Capital Asset Pricing Model (자본자산 가격결정 모형) and its preliminary work. Since I am very lazy, I am skipping important demonstrations and graphical illustration parts…(sorry) If you find any error, please do let me know at gunhoqw20@gmail.com.

1. Algebraic Structure (대수구조)

1. Vector and Coordinate System

Reference: 수학의신.com (이상엽 선생님)