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SEBARAN PEUBAH ACAK KONTINU

SEBARAN PEUBAH ACAK KONTINU. P(a<x ≤b)=P(a<x<b). SEBARAN PELUANG BERSAMA f(x,y)=P(X=x,Y=y). X = Putih Y= Hitam. f(0,0). f(0,1). f(1,0). f(0,2). f(1,1). f(0,2). Bebas secara statistik. NILAI HARAPAN (EKSPETASI). ♂ ♂. ♂ ♀. ♀ ♂. ♀ ♀. f(1)=P(X=1)=2/4. f(2)=P(X=2)-1/4.

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SEBARAN PEUBAH ACAK KONTINU

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  1. SEBARAN PEUBAH ACAK KONTINU P(a<x≤b)=P(a<x<b)

  2. SEBARAN PELUANG BERSAMA f(x,y)=P(X=x,Y=y) X = Putih Y= Hitam f(0,0) f(0,1) f(1,0) f(0,2) f(1,1) f(0,2)

  3. Bebas secara statistik

  4. NILAI HARAPAN (EKSPETASI) ♂♂ ♂♀ ♀♂ ♀♀ f(1)=P(X=1)=2/4 f(2)=P(X=2)-1/4 f(0)=P(X=0)=1/4 E[X]=0(1/4)+1(2/4)+2(1/4) = 1

  5. Skor Warna dan pH Daging sapi E[x] = 0(7/20+1(12/20)+2(1/20)=14/20 = 0.70 E[y] = 0(8/20+1(10/20)+2(2/20)=14/20 = 0.70 E[xy]=0(0)(4/20)+0(1)(3/20)+1(0)(4/20)+1(1)(6/20) +1(2)(2/20)+2(1)(1/20) E[xy]= 0 + 0 + 0 + 6/20 + 4/20 + 2/20 = 12/20 = 0.60 E[xy] ≠ E[x] E[y] 0.60 ≠ 0.70x0.70 Skor warna tergantung dari skor pH

  6. NILAI HARAPAN KHUSUS -1≤r≤1

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