I. Matematikaning 5-mavzusi bo‘yicha asosiy nazariy material: ma’ruza matni Reja

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	2	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