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2 tasks statistics MIEMP
Uploaded: 03.06.2013
Content: 30603175349180.zip 18,34 kB
Product description
Task 1
Consider in Table aggregate. Which of them are homogeneous? Pay attention to the following points.
1. Does units constituting the totality, to one and the same type?
2. Under the influence of some factors evolved their parameters? (Fill in the appropriate box for yourself).
3. Are these factors are common to all units in the population?
Task 2
Calculate the mean values \u200b\u200bof an ordered series (arithmetic mean, median and mode).
Group companies by the number of workers The number of enterprises
100-200 2
200-300 4
300-400 5
400-500 10
500-600 19
600-700 13
700-800 2
For the calculation of the mathematical expectation (arithmetic mean) is recommended in the following table:
Intervals group center frequency interval Artwork
1 2.1503 million
2 4 250 1000
3 5 350 1750
4 10 450 4500
5 19,550 10,450
6 13 650 8450
7 2 750 1500
55
27950
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