The "limit range" entry in Baidu Encyclopedia:
Extreme difference
Open classification: mathematics, statistics, physical chemistry, applied mathematics, data processing.
range
Is the difference between the maximum value and the minimum value in a set of measured values, indicating R=xmax-xmin.
Range only represents the maximum discrete range of the measured values, and fails to use all the information of the measured values, and cannot reflect the consistency between the measured values in detail. Range is a biased estimate of the population standard deviation, which can be used as an unbiased estimate of the population standard deviation when multiplied by the correction coefficient. Its advantage is simple calculation, so it is still widely used in data statistical processing.
Range (R): The difference between the maximum value and the minimum value in a set of measured data is called range, which is also called full scale or range error. It can reflect the fluctuation range of a set of data.