1( = @ 1( > 2( > 3( 4( > 2( 45 % @ @ > > > @ > > = > 1( 180 2( 162 3 ...

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130P (A′ I B ′)= P(A ′)⋅ P(B ′)= ( 1 −0/1)(1−0/2)= 0/72R = X max − X min = 1500−150= 1350260+275m = M e = = 267 / 52δ 2/4979CV = × 100 = × 100 = 26 / 573x 9/484-8585 . 2 (1. 2 (2. 3 (3 . 1 (4P(A I B) 0/16P (A / B) = = = 0/4P(B) 0/41E(X) = np = 2 × = 12E (ax + b) = aE(x) + b+∞ 2 x2123 ⎤ 8E(x) = ∫ xf (x)dx = ∫ dx = x0 2 6 ⎥ =0 6−∞⎦2 2 4 2E(x + ) = E(x) + = + = 23 3 3 3. 4 .=43N2 . 4 (5. 1 (6. 1 (7. 2 (8. . 4 (9. 4 (10
131Cov(x, y)= E(xy) − E(x)E(y) = 8 − 7×1=1Cov(ax + b,ey + d) =aeCov(x, y)= 2×3×1=6 79 − 75 79 − 75P( 71 < x < 79)= P( < z < ) = P( −0/4 < z < 0/4)10 10= 2φ0/4 −1= 2×0/6554 −1= 0/3108. 1 (11. 3 (12. 1 (13. 3 (14. 2 (15. 3 (16. 2 (17. 2 (18P (X2 − X1> µ 2 − µ 1)= P(Z > 0)= 0/5X f (x)xf (x).−1 ≤ r ≤ +1 . 4 (19. 4 (20- 2- 10-0/150/10/5-0/3-0/10E(X) = µ = ∑ xf (x)= 0mb =3 = 0s310/10/120/150/30
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 and 12:
53fi= ( < < ) . (2( < < ) .
Page 13 and 14:
55P(AU B)2 1P(B) = , P(A) =3 372(4(
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: 1291f (x) =θ (44X، 0< x < θ(4
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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1( = @ 1( > 2( > 3( 4( > 2( 45 % @ @ > > > @ > > = > 1( 180 2( 162 3 ...

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