< uk > to define a particular normal probability distribution , we need only two parameters : the mean ( ) and the standard deviation ( ) . < / uk > < uk >確定一個具體的正態(tài)概率分布,只需要兩個參數(shù):平均數(shù)和標(biāo)準(zhǔn)差< uk >
Representation of results of particle size analysis - methods of calculation relating to particle size analyses using logarithmic normal probability distribution 粒度分析結(jié)果的表示.使用對數(shù)正態(tài)概率分布的粒度分析相關(guān)計算方法
The waste load is regarded as a stochastic variable following the log - normal probability distribution based on statistical data , and the constrains on water quality levels are expressed in a probability form 假設(shè)排污量是服從對數(shù)正態(tài)分布的隨機(jī)變量,并且以潮周期內(nèi)水質(zhì)達(dá)標(biāo)的概率作為衡量控制點達(dá)標(biāo)的依據(jù)。
In the paper , based on the analysis of data from radiation stations and the data of corresponding sunshine stations , the normal probability distribution feature of monthly solar radiation is figured 本文采用我國70個建站時間在30年以上的日射站資料以及對應(yīng)的日照資料,首先討論了單站總輻射與日照相關(guān)系數(shù)的時空變化特征。