医学统计学的基本方法（三）潘子昂，王石磷，李占魁三统计检验在医学研究中，由于受仪器、方法等外界客观因素，以及研究人员本身技术水平等主观因素的影响，使得到的数据总有波动和差异，其中存在有随机误差、系统误差和过失误差。这些误差常纠缠在一起，除极为明显的情... The basic methods of medical statistics (3) Pan Ziang, Wang Shi- phosphorus, Li Zhan-kui Three statistical tests in medical research, due to the external factors such as instruments, methods, and subjective factors such as the researcher’s own technical level, resulting in the total data There are fluctuations and differences, among which there are random errors, systematic errors and gross errors. These errors often tangled together, with the exception of the most obvious...