5 tasks statistics, version 12

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Uploaded: 06.07.2013
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Task 4.
For these data, proceed as follows:
1) to build a number of Frequency Allocations, relative and cumulative frequency for the 5 intervals.
2) to build the landfill, the cumulative histogram and polygon.
3) Find the average, mode, median, first and third quartiles, mezhkvartalnyh scope, standard deviation and coefficient of variation. Analyze the data using these characteristics and specify the interval including 50% of the central value of the quantity.
In the telephone exchange was registered following the duration of long-distance phone calls:
10.2 11.3 10.6 10.9 12.6 18.1 12.3 13.5 12.9 11.6
15.3 17.2 18.6 14.2 15.6 18.3 12.6 12.3 15.3 11.9

Task 6.
Studying the level of education of voters and their political sympathies, we obtained the following results:
Education Level Political preferences
democratic. Republican. independent
The overall average 43 53 39
Spec. average 30 35 15
Higher 30 45 25
Checking whether the political sympathies of the level of education ().

Target 12.
10 uniform enterprises have the following data:
Company number 1 2 3 4 5 6 7 8 9 10
The number of workers with training,% 10 12 14 17 24 28 30 35 40 50
The number of defective products,% 18 17 14 12 10 10 8 9 6 June
According to initial data, build single-factor regression model of dependence between the release of defective products and the training of workers. Calculate the coefficients of elasticity, tightness performance correlation.

Target 18.
Implementation of potatoes in the markets of the city for three years, is characterized by the following data in tons:
Year Month
I II III IV V VI VII VIII IX X XI XII
1998 70 71 82 190 280 472 295 108 605 610 184 103
1999 71 85 84 308 383 443 261 84 630 450 177 168
2000 63 60 59 261 348 483 305 129 670 515 185 104
Determine the seasonality indices. Plot the seasonal wave of realization potatoes.

Task 25.
The available data on the sale of oil in the store by quarters:
Oil
Units Q1 Q2
Volume,
thous. units. Price,
rub. Volume,
thous. units. Price,
rub.
The piece packs. 1.2 5.2 1.1 5.6
Weighted kg 0.4 22.0 22.4 0.41
Calculate chain and basic, individual and general indices of volume and price. Show the relationship between them.

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