Gauss-Markov theorem

例句：

1. 1.The Gauss-Markov theorem is a fundamental principle in probability theory.
   高斯-马尔可夫定理是概率论中的一个基本原理。
2. 2. In the field of machine learning, the Gauss-Markov theorem plays a crucial role in modeling complex systems.
   在机器学习领域，高斯-马尔可夫定理在建模复杂系统方面起着至关重要的作用。
3. 3. The Gauss-Markov theorem has been used to analyze the behavior of many natural phenomena.
   高斯-马尔可夫定理已被用来分析许多自然现象的行为。