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平均数在农业科学试验和生产实践中的应用十分广泛。但是如果运用不当,它也常可歪曲或掩盖事物的真相而导致错误的分析结论。应用平均数的重要原则在统计学上,平均数是从许多个同一类型的数值中抽象出来的概括的数量,所以平均数是以数量表示总体中各个体共同质量的尺度,它的运算必须以同质的总体为基础。如果总体各个体之间存在着本质上的差别,则所得出的平均数就不可能正确反映有关事物的本质及其规律性。
The average is widely used in agricultural science experiments and production practices. However, if used improperly, it can often distort or cover up the truth of things and lead to erroneous conclusions. Important Principles for Applying Averages Statistically, averages are summaries of numbers that are abstracted from many of the same types of numbers, so the averages are measures of the common quality of individuals in the population in terms of their numbers, Based on the overall homogeneity. If there is an essential difference between the individual entities, the average number obtained will not correctly reflect the nature and regularity of the relevant matter.