Physics · Information Theory and Coding

Consider the following statements related to source coding: 1. A conversion of the output of a discrete memoryless source (DMS) into a sequence of binary symbols is called source coding. 2. The source code efficiency (η) is defined as η = Lmin/L, where Lmin is the minimum possible value of average codeword length, and L is the average codeword length. 3. The code redundancy (γ) is defined as γ = 1 + η. Which of the above statements are correct?