PRACTICAL WORK STATISTICS IMEI

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Uploaded: 12.01.2014
Content: 40112014014797.doc (357,5 kB)

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Task 1.
You are a tax inspector, and you mandated to check the data of the continuous registration of commercial tents in your area. Total registered with the tax authorities is worth 1,000 stalls selling food (group A); 500 stalls selling industrial goods (group B), and 150 - in other kinds of goods (group B). After checking the tents you find that the control circuit of the tents instead of 250 (A), registered with the complete enumeration, they turned 270; instead of 100 tents (Group B) - 115; instead of 30 tents (Group B) - 32. As you move your selected data on the entire set of tents in your area?

Task 2.
You Employee Center for the Study of Public Opinion. In addition, in the shower you are an avid player. On the nose presidential election and before you the results of a survey conducted by two independent companies, the assessment of who wins the election. Company "A" as the population use the phone book. Randomly selected 4 million addresses, it is sent across the country with cards in the relation to the presidential candidates. Spending a large amount of mail and processing cards, the "A" announced "his" candidate.
Another company, "B" has made its judgment on the basis of 4 thousand questionnaires, taking into account the opinion of people representing different sectors of society (division into social groups was adequately reasoned). Opinions "A" and "B" were opposed.
What company (in which candidate) You bet, and why?

Task 3.
You are head of the credit department of the bank. Faced with the loan defaults, you decide to continue to lend only to firms that are "similar" to those that have proven themselves well and do not give out those "similar" with defaulters or swindlers. To get started, you need to collect statistics about both. What indicators of firms, from your point of view, should help you make the right conclusion in the future? What are the methods of statistics you need to use for the treatment of statistical population? How will you use them?

Task 4.
You entrepreneur. As your property is a garage for four seats. Besides at your disposal tank with gasoline that you fill your test (also an entrepreneur, but richer than you) at the rate of 0.1 USD for 1 liter. You face the following choice: to choose four cars for your garage, but to profit from their operation has been as much as possible. Each set of four machines is the same (all cars used). Various consumption of gasoline and the number of kilometers traveled by car per day and revenue from the operation of each machine. For the calculation you need the data from the tables.
Table. Features manual car

Vehicle mileage Days Average consumption per month
(Conditionally) of fuel (l \\ km) per day (km) operate (days)

A 0.2 120 24
B 0.3 110 20
With 0.15 115 24
A 0.3 100 20
£ 0.25 120 20

Revenue from the operation of machines per month is: A - 1000 USD .; B - 900 USD; C - 1 200 USD .; D - 950 USD .; E - 1100 USD

Task 5.
You are a broker company, which is engaged in the sale of shares of mining companies in Russia. For you to contact the customer for you to give him advice about buying a stake in the company for the extraction of zinc.
Rate changes in production, import and export of zinc from the relative values \u200b\u200bof the dynamics of a variable base of comparison (chain indices).

What advice can you give to your client?

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