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Biostatistics-3 (Population&sampling (methods (systemic sampling,…

- - - - discrete
      - continuous
- - - - Z transformation
        
        standard normal/N(0,1)(mean,variance)
        
        Cumulative distribution function(CDF)
        
        常用點 Φ(∞)=1 Φ(-∞)=0 Φ(0)=0.5
        
        Φ(x )=P(X ≤ x)
        
        Φ(-x)=1-Φ(x)
        
        不同資料間的比較
        
        變數
        
        mean-->平移
        
        variance-->除
      - symmetry,bell-shaped
      - PDF
    - - expected /mean value
        
        E(X) = nπ
      - variance
        
        Var(X) =nπ(1 − π)
      - distribution
      - 圖