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54 2 5 (1 10 (472 (3120 (248 (1 (2 . 17 350/35 (2 0/52 (1 23 250/17 (40/6 (3 (30/17(4 . 12C 435(352 452(2120 12 0/ 52 (1 (4 ( ) 3 (412C 3(3n (211n(4 (3(2NnCNNn. 45(412(31412P 3(1N (5(21N(1, (6 34(1
55P(AU B)2 1P(B) = , P(A) =3 372(4(399 S( 816) (4P(A.B) 2(43 30/ 8 200 BA (7 1(21 (13= 2 , X =12 (88 9(-63) (3 (1014) (2 (618) (11 2P(B) = P(A) =3 32(39, 2 B (2A (9 (1 8 (10 . 31(4 (3(2 (1105 0/05 (11 10 (4 20 (3 2 (2 5 (1 0/91 S2 = 81 X = 75 (12 ( 20110/3) (4 P(A / B) 0 /833(4(45105) (3(25/980/9) (2P (A U B) = 0/9 P (B) = 0/ 80/752 (30/625 (2(20/989/1) (1P (A) = 0/6 (13: 0/551 (1
Page 1 and 2: 43 (4 (3 (1 (2 (1
Page 3 and 4: 45 20 100 (16( ) 150 -
Page 5 and 6: 47 (2 (4 14 . . (2.
Page 7 and 8: 49 . 2 (1α i= 360×
Page 9 and 10: 51 n 100= = 502 2n− Fi −1m =2
Page 11: 53fi= ( < < ) . (2( < < ) .
Page 15 and 16: 576! (44× ! 3!(3 . 3 ! × 2!
Page 17 and 18: 59 4 3 . 21 (1
Page 19 and 20: 611 81−= ⇒ k = 3 ⇒ µ − kδ
Page 21 and 22: 63 P ( ) = P( )3 4 3 6 1P ( )
Page 23 and 24: 65 4 1 33P(W 1 ) =7 3 2 4P(B1
Page 25 and 26: 67X = xP (X =x) (435 (4 E (
Page 27 and 28: 69 1000 δx= 2µx 770
Page 29 and 30: 71Var(y) = a2Var(x) = ( −2)2× 1/
Page 31 and 32: 73xy012f (y) ( (11 2 3 6 x-18 8
Page 33 and 34: 75 a . 3 (8:
Page 35 and 36: 77 ⎛4⎞⎛66⎞⎛4⎞⎛66⎞
Page 37 and 38: 797(49 ( E(X) = λ)100−1−e λ(4
Page 39 and 40: 81 . . 3 (1λ x = δ
Page 41 and 42: 83E(x) = np = 43 / 2Var(x) = npq =
Page 43 and 44: 85e−λλxP(x) =X!P(X ≥ 2)= 1−
Page 45 and 46: 87f (x) =1µ = δ =λ . .
Page 47 and 48: 89 P( − a < z < a)0/921=2(4 6
Page 49 and 50: 9122− (4(399 1818(40/6587 (
Page 51 and 52: 93 1 3P ( −a< z < a) = 2 φ a
Page 53 and 54: 95P − PP(P < 0/6)= P(Z < ) = P(Z
Page 55 and 56: 97 X . δ = 2 µ =10 (1 (1
Page 57 and 58: 99. (4 n1 + n2−2 (3 X
Page 59 and 60: 101: P(X< 300): (4 E(Z4 )1(
Page 61 and 62: 103 . 2 (7. 3 (8. 2 (9. 4 (
Page 63 and 64:
105 f (x) =1b − a0a < x
Page 65 and 66:
107 (4 (3 (2H 1 :
Page 67 and 68:
1090/31250 (40/343 (3 . 100 0/
Page 69 and 70:
111 . H 0 H 0 . 3 (1
Page 71 and 72:
113 3 2 (4 Y = 3 +0/4X0〈r≤
Page 73 and 74:
115 (4( r = 100r′)X(3 Y,Y( B = B
Page 75 and 76:
117 . X y . r=1 .
Page 77 and 78:
11921212102121012121212121212121012
Page 79 and 80:
121 82-8383 60: ( ) 20:
Page 81 and 82:
123 13 (141Lnλ2(42Lnλ(31
Page 83 and 84:
125 . 4 (10 37374
Page 85 and 86:
127 84-85 60: ( ) 20: .
Page 87 and 88:
1291f (x) =θ (44X، 0< x < θ(4
Page 89 and 90:
131Cov(x, y)= E(xy) − E(x)E(y) =
Page 91 and 92:
133 711E(X / Y = 1)1520(4(4 f (x,
Page 93 and 94:
135 . 225 µ X (18%95
Page 95 and 96:
137 . 380 34-1 (40/75 (4n 2 n
Page 97 and 98:
139f (x / y) =fx (x) =fy (y) =3 x23
Page 99 and 100:
141x-2-10210y413-1-25 . 2 (23.
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