Prove: (a) Every matrix is row equivalent to itself. (b) If B is row equivalent to A . then A is row equi"alent to B. (c) If C is row equil'alent to Band B is row equil'alent to A. then C is row equivalent 10 A.

Chapter 1: Basic Ideas 1.1: Sampling Lecture Notes 1/9/17 STATISTICS → math discipline; study of procedures for collecting and describing data and drawing conclusions from the obtained information POPULATION vs SAMPLE → population: entire set of individuals → sample: subset of population SIMPLE RANDOM SAMPLE (SRS) → sample chosen by a method where each collection...