7-§. Tasodifiy miqdor ehtimollari taqsimotining
integral va differensial funksiyalari
X-uzluksiz tasodifiy miqdorning integral funksiyasi F(x) berilgan. Shu
tasodifiy miqdorning:
1)
differensial fuksiyasini,
2)
matematik kutilishi va dispersiyasini,
3)
berilgan (α, β) oraliqqa tegishli qiymat qabul qilish ehtimolini
toping,
4)
integral va differensial funksiyalarning grafiklari yasalsin.
1-masala. F(x) =
α=0, β=0,2.
2-masala. F(x) =
α=0, β=0,25.
3-masala. F(x) =
α=0, β=0,8.
4-masala. F(x) =
α=0, β=0,25.
5-masala. F(x) =
,
α=0, β=0,25.
6-masala. F(x) =
α=0, β=
.
7-masala. F(x) =
,
α=3 , β=4.
8-masala. F(x) =
, α=0 , β= .
9-masala. F(x) =
α=0 , β= .
10-masala. F(x) =
,
α=0 , β= .
11-masala. F(x) =
,
α=0 , β= .
12-masala. F(x) =
,
α=0 , β= .
13-masala. F(x) =
,
α=0 , β=
.
14-masala. F(x) =
,
α=-1, β= .
15-masala. F(x) =
, α=0,5 , β= .
16-masala. F(x) =
,
α=0,5, β= .
17-masala. F(x) =
,
α=2, β=3.
18-masala. F(x) =
,
α= 2,5, β=3.
19-masala. F(x) =
,
α= 1, β=2.
20-masala. F(x) =
,
α= 1, β=2.
21-masala. F(x) =
,
α= , β= .
22-masala. F(x) =
,
α=2 , β=3 .
23-masala. F(x) =
, α=-0,5, β=0.
24-masala. F(x) =
,
α=0,5, β=1.
25-masala. F(x) =
,
α=1,5, β=2.
26-masala. F(x) =
,
α=0,5, β=1.
27-masala. F(x) =
,
α=0,5, β=1.
28-masala. F(x) =
,
α= , β=3 .
29-masala. F(x) =
, α= , β=2.
30-masala. F(x) =
,
α=
, β=0.
8-§. Normal taqsimot qonuni
Agar X-tasodifiy miqdor normal taqsimlangan bo`lib, uning
matematik kutilishi «a» va o`tracha kvadratik chetlanishi « » berilgan
bo`lsa:
1) X-tasodifiy miqdorning differensial funksiyasini;
2) X-tasodifiy miqdorning berilgan (α, β) oraliqdagi qiymatni qabul
qilish ehtimolini;
3) (x-a) ning absolyut qiymati berilgan « » sonidan kichik bo`lish
ehtimolini toping.
a
1
2
5
4
9
4
2
3
2
3
10
4
3
13
11
16
5
4
17
4
15
27
8
5
18
5
16
28
10
6
15
5
13
25
10
7
7
4
3
10
2
8
4
5
2
11
3
9
14
4
12
24
8
10
6
3
2
11
3
11
13
2
11
16
4
12
7
2
3
10
4
13
12
4
10
22
8
14
8
1
4
9
5
15
11
5
9
21
10
16
9
5
5
14
7
17
10
4
8
10
8
18
6
3
2
12
6
19
6
9
3
12
18
20
23
5
20
30
10
21
24
6
21
30
9
22
25
7
18
39
14
23
13
2
11
16
4
24
10
2
4
15
5
25
19
2
17
29
9
26
2
6
4
9
6
27
12
4
7
18
5
28
9
6
5
14
3
29
10
4
2
13
4
30
8
5
3
15
10
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