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...e.4, probability=0.0003 ---------365*0.7277~0 The Poisson distribution is a good model .

... is the implication for the regression function if βo = 0 so that the model is Yi = β1Xi + εi ? How would the regression function plot on a graph? 如果βo = 0，表示這是一條通過原點（0, 0），以β1為斜率的...

... Models and Methods - The LISREL ModelThe statistical model behind SEPATH is best understood in historical context, and so this section begins with a review of several important models for the analysis of covariance ...

...)Since R2 = .7081, there is no evidence to conclude that the model is valid （ A ）因為 F = 117.64，沒有證據推論模型有效，錯！ （B）因為 p-value...

有點複雜 我寄到你信箱你看一下 過程大概是用最小平方法

5. d/dx(|x|) =d/dx(√x^2) =(1/2)*(√x^2)^(-1)*2x =x/(√x^2) =x/|x| 6. 假設高度為h時水面的圓半徑為R (R-9):(12-9)=h:12 R=(h/4)+9 V=(πh/3)[((h/4)+9)^2+9*((h/4)+9)+81) =π*[(1/48)h^3+(9/4)h^2+81h] dV=π*[(1/16)h^2+(9/2)h+81] dh=8 dt dh/dt=8/π*[(1/16)h^2+(9/2)h+81] h=6 dh/dt(6)=32/441π

鈾的衰減隨時間與其質量成正比 dM/dt =-kM ((k是比例常數 可得 M(t)=ce^(-kt) (i) M(0)=M0=c ((一開始的重量 M(10)=1/2 M0=M0e^(-10k) ((衰退到一半的重量 所以 e^(-k) =(1/2)^(1/10) M(5)=ce^(-kt) =M0(1/2)^(5/10) =10.6...

...比較法 LSMEANS 用在事前比較 LSMEANS a /PDIFF; 其中PDIFF, 一方面要求SAS輸出... with pre-planned comparisons should be used. 關於事前與事後比較, 可以參見下面網址的...