Statistics practical answers, 10 jobs

Statitstika practical work 10 jobs.

1. The population of the Russian Federation on the 1959 census. It amounted to 117.2 million people, including -61.1 million urban people, rural -56.1 million people. According to the 1970 census, the total population of the republic has grown to 129.9 million. People, of which the urban population, had 80.6 million. People and rural -49.3 million. People. According to 1979. There were only 137.4 million. People, including urban population -94.9 million. People and rural -42.5 million. People. According to the 1989 total were registered 147 million. People, including urban population -108 million people and rural -39,000,000. People. According to the census of 2002 the total population of Russia amounted to 145.1 million people., Including the city with a population of 106.4 million. People, rural - 38.7 million. Chel.Predstavte the data in the form of statistical tables, easy to read. Fill in the table relative indicators of population structure.

Analyze the resulting table.


2. The vehicle of the base is going to the store at 40 km \\ h, and from the store to the base - at a speed of 60 km \\ h. What is the average speed of the vehicle in flight (to the store and back).


3. According to the development of enterprise production workers (see. Table) the sum of the average output of production by one worker per shift.


4. On the data on the distribution companies in the region in terms of turnover (see table) defined; fashion and median. By all calculations do vyvody.Dannye calculation made into a table.


5.Pri control quality control of baked goods held a 5% sampling batch of sliced \u200b\u200bloaves of flour sorta.Pri this from 100 selected in the sample loaves 90 pcs. It meets the requirements of the standard. The average weight of a loaf in the sample was 500.5 g with srednemkvadraticheskom deviation of 15.4 On the basis of the sample data set possible values \u200b\u200bfor the proportion of standard products, and the average weight of one product in the whole Party.


6. According to the information specified in paragraphs 5.4 Benefits approx. 31 calculated the optimal sample size to a 0.95 probability margin of error does not exceed 10% of the average grain yield.


7.Obem marketable products car repair plant (in current prices) was as follows: April-12,000 th. Rub., May-14 400 thousand. Rub., June -24 000 thous. Rubles. Selling prices for the products of the plant are reduced on average in May compared with April by 0.6%, and in June increased by 5.0% compared with May. Determine the change of the physical volume of production.


8.Po company two months has the following data on the output and expenditure on it (see. Table)

Determine the absolute change in the total cost of the enterprise due to changes in production and its cost.


9.Potreblenie leather shoes in a country characterized by the data shown in the table:

Analyze the consumption of footwear, to calculate the relative values \u200b\u200bof the dynamics.


10.Imeyutsya following data on the administration of goods by rail public (see. Table) in the region.

To study the general trend of the data on the administration of railway transport of goods by month 1995-1997,. make.

- Conversion of raw data by the consolidation periods of time: a) quarterly levels; b) annual levels;

-sglazhivanie quarterly levels of origin of goods by means of a moving average. Graphically and smoothed actual levels of a number of speakers.

Draw conclusions about the nature of the general trend of the data on the administration of goods by rail public transport in Russia. Calculate the indices of seasonality on the administration of goods by rail public.