QuizFormulas04

QuizFormulas04 - Y 2 X-Y = 2 X + 2 Y-2 X Y x = ; x = n

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STAT 212: Quiz 4 Formulas ¯ x = 1 n n X i =1 x i s 2 = 1 n - 1 n X i =1 ( x i - ¯ x ) 2 = 1 n - 1 ( n X i =1 x 2 i - ( n i =1 x i ) 2 n ) s = s 2 r = 1 n - 1 n X i =1 ± x i - ¯ x s x ²± y i - ¯ y s y ² ˆ y = b 0 + b 1 x ; b 1 = r s y s x , b 0 = ¯ y - b 1 ¯ x μ X = X x i p i σ 2 X = X ( x i - μ X ) 2 p i σ 2 a + bX = b 2 σ 2 X σ 2 X + Y = σ 2 X + σ 2 Y + 2 ρσ X σ
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Unformatted text preview: Y 2 X-Y = 2 X + 2 Y-2 X Y x = ; x = n...
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