。统计学分析处理的对象是带有随机性的数据。按照随机排列、重复、局部控制、正交等原则设计一个试验，通过试验结果形成样本信息（通常以数据的形式），再根据样本进行统计推断，是自然科学和工程技术领域常用的一种研究方法。-. The statistical analysis of the object of processing is the data with randomness. In random order, repeated, and the principle of local control, orthogonal design a test, the test results of a sample information (usually in the form of data), and then based on the sample to make statistical inferences, is commonly used in a study of the natural sciences and engineering technology method.