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粒度分析是一种精细的统计工作,其数据的观测与处理均以概率论和统计学为基础,粒度分析工作者必须掌握基本的概率论和统计学知识,并熟悉常用的数理统计方法。一、概率论与统计学基础 (一)在基本概念方面应掌握:随机变量、总体和个体、样本和样本容量、频数、频率和稳定频率、概率、统计分组、分布函数和分布参数等。对于岩矿粒度分析具有重要意义的分布函数有:正态分布(算术正态及对数正态)、罗森分布、单众值分布、多众
Particle size analysis is a delicate statistical work. The observation and processing of data are based on probability theory and statistics. The researchers of granularity analysis must master the basic theory of probability and statistics and be familiar with the commonly used mathematical statistics methods. First, the probability theory and statistical basis (A) should be mastered in the basic concepts: random variables, population and individual, sample and sample size, frequency, frequency and stability of frequency, probability, statistical grouping, distribution function and distribution parameters. The distribution functions of importance for rock and grain size analysis are: normal distribution (arithmetic normal and logarithmic normal), Rosen distribution, single-value distribution, multi-