1.如何区别准确度和精密度? 答:关于准确度和精密度问题,看起来是无足轻重的,但在实际上,往往在概念上存在着某些混淆现象,它们的确切定义是: 准确度——物理量的真实性和它的测量结果之间的吻合程度 精密度——同一物理量相邻测量数目之间的吻合程度 现用三个靶子来描叙偶然误差和系统误差,并用此对准确度和精密度加以说明(如图1所示)。 1. How to distinguish between accuracy and precision? A: The questions of accuracy and precision may seem insignificant, but in practice there is often some conceptual confusion that is precisely defined as: accuracy - The degree of coincidence between the authenticity of the physical quantity and its measurement precision - The degree of agreement between the number of adjacent measurements of the same physical quantity Three occasions are used to describe the incidental error and the systematic error, and to use this accuracy And precision (as shown in Figure 1).