第2章数理统计基础习题解答.pdf

(X , X ,L, X ) X 1 2 n X i (i 1,2, L, n) X X i (i 1,2, L, n) (X , X ,L, X ) n 1 2 n (X , X ,L, X ) 1 2 n X (x , x ,L ,x ) 1 2 n x , i 1, 2,L , n X n i x , i 1, 2,L , n i X x , i 1, 2,L , n i x , i 1, 2,L , n X i X [0, λ] (λ) X 1, X 2 , LX n X ( C ) 1 n λ 1 n A ∑X i − B ∑X i −E (X ) n i 1 2 n i 1 1 n CX 1 +X 2 D ∑X i −D (X ) n i 1 1 X (X , X ,L, X ) X 1 2 n n X (X −X )2 i ≠j X ∑ i i X j i 1 n n 2 X 2 X X i ≠j X ∑ ∑ i j i i i 1 i 1 (X , X ,L, X ) p (x ) 1 2 n X i ~ p (x ), i 1, 2,L , n min{X 1,L X n } ~ p (x) n n