Task 1.
On the basis of the data in Table 1 to conduct grouping 50 trade enterprises in order to identify the relationship between economic performance.
Table 1
Key performance indicators
№ p / n Revenues from sales, ths. Rub. (RESULT). The number of employees, pers. (Factor).
1 11262 32
2 8 5956
3 10706 3
4 10504 4
5 5794 2
2 June 1254
3 July 2913
1 August 1326
September 1008 3
10 9090 8
11 14000 7
1 December 1284
13 425 1
14 5650 5
15 3084 5
16 3527 6
17 4552 2
18 15 9157
19 11 5323
20 43 8327
21 12 5611
22 4736 9
23 4591 2
24 12250 38
25 14268 45
26 14 6884
27 16 6758
28 1598 4
29 1130 2
30 1223 3
31 15 8376
32 13 8123
33 17 8532
34 35 9463
35 21 5918
36 23 6132
37 10 4015
38 11 4433
39 3949 8
40 6012 9
41 13 6310
42 24 7235
43 27 7799
44 28 8748
45 30 9864
46 2581 7
47 2741 8
48 3264 6
49 12080 36
50 1965 3

Task 2.
Calculate the results of the 1st job.
1) the structure of the aggregate enterprise grouping characteristics;
2) the average value of the grouping variable (for grouped and ungrouped data);
3) The coefficient of variation (for grouped and ungrouped data).
Explain the differences in the values \u200b\u200bobtained coefficients. Formulate conclusions

Task 3.
Spend 30% of mechanical sample of the population presented in Table 4.1 on the indicator, which is effective for your option. With a probability of 0,997 (t = 3) to calculate the limits of variation of the average value in the population. The selection begins with the company, which coincides with the number of your choices.

Task 4.
The available data on the Sakhalin area for 2001 - 2005 years
Edition number Indicator 2001 2002 2003 2004 2005
1 Births, people. 5296 5588 5893 6121 6010
On the basis of the above information for the analysis of the dynamics of the 2001 - 2005 biennium. define:
1) changes in the levels of a number of indicators of dynamics (absolute growth, growth rate and growth)
- Chain;
- Baseline (to the initial level);
2) the absolute content of one percent growth;
3) the average level;
4) the average absolute growth, growth rate and growth.
Graphically the dynamics of the index. Imagine the results of tasks 1 and 2 in table form.

Task 5.
Option 1. The following data on the consumption of material for the production of 3 product types and volumes of their issue for two years:
Product Type Consumption, ths. Kg Output, pieces
basic accounting basis reporting
A 4.5 4.3 1200 1100
B 8.1 9.0 4100 4200
The 4.0 4.4 800 950
Define:
1) the specific consumption indices of the material for each product;
2) the index of the specific consumption of material as a whole for the three types of products and the amount of savings (deficit) of the material as a result of changes in specific consumption.
Formulate conclusions.

Task 6.
Calculate the correlation coefficient between the effective and factorial signs of initial data Tasks 1 of your options.

The statistical study of population movement
References