1. ) ,
) 0,8, ) 0,2, 1,36, 1,17, 5,85, [1, 0], 1
)
2. ) , ) 1, ) 1/6, 5/36, , , 0, 0, )
3. ) ,
) 1/2, ) 3/2, 3/4, , [1, 2], : 1 2,
)
4.
5. ) , ) 0,25, ) 0,75
6. ) , )
7. 3, 160,
8. ) 7/2, 35/12, ≈ 1,71; )
9. R . (x, y) , - - . .
ξ
10. p.
9
1. 2, 1,9, ≈1,38
2. 3,2
3. 0,9938. -.
4.
5.
- [1, 11], Dξ = 8,33
6. 2/9, 1/3, 22,5
7. 0,136, 0,152
8. 0,092
9. 0,081, 0,788
10. 0,192, 0,692, 0,023
11. . .
10.
1.
1.
0,75 | 0,25 |
Y | -1 | ||
P | 0,25 | 0,6 | 0,15 |
2. , , P (X = 2 Y = -1),
3.
4. ,
Y | X =2 | -1 | ||
P | 0,2 | 0,667 | 0,133 |
Y | X = 3 | -1 | ||
P | 0,4 | 0,4 | 0,2 |
X | Y = -1 | ||
P | 0.6 | 0,4 |
X | Y = 0 | ||
P | 0.833 | 0,167 |
X | Y = 1 | ||
P | 0.667 | 0,333 |
5. M (Y | X = 2) = -1 0,2 + 0 0,667 + 1 0,133 = -0,067
M (Y | X = 3) = -1 0,4 + 0 0,4 + 1 0,2 = -0,2
7.
9.
10.
. | r | = 0,092 .
2.
1.
1/4 | 3/16 | 5/16 | 1/4 |
Y | ||||
P | 3/16 | 1/4 | 3/8 | 3/16 |
2. :
3. = 57/16 = 3,5625, DX = 1,2461,
MY = 57/16 = 3,5625, DY = 0,9980,
4.
Y | X = 2 | ||||
P | 1/2 | 1/2 |
Y | X = 3 | ||||
P | 1/3 | 1/3 | 1/3 |
Y | X = 4 | ||||
P | 1/5 | 2/5 | 2/5 |
( )
Y | X = 5 | ||||
P | 3/4 | 1/4 |
5. M (Y | X = 2) = 2,5, M (Y | X = 3) = 3, M (Y | X = 4) = 4,2, M (Y | X = 5) = 4,25
7. D (Y | X = 2) = 0,25, D (Y | X = 3) = 0,6667, D (Y | X = 4) = 0,56, D (Y | X = 5) = 0,1875
9. r =0,7251
10. D (Y | X) = 0,4091,
3.
Y = 160 | Y = 165 | Y = 170 | Y = 175 | Y = 180 | |
X = 52 | 1/5 | ||||
X = 54 | 1/5 | ||||
X = 63 | 1/5 | ||||
X = 64 | 1/5 | ||||
X = 72 | 1/5 |
|
|
MX = 61, MY = 170, DX = 52,8, DY = 50,
4.