Example of individual task

INDIVIDUAL TASK of

the course "Statistics"

Part 1

According to a statistical survey conducted by the companies that are listed in Table. 1, perform the following tasks:

1. Make a grouping of enterprises in terms of exports (form 4 groups with equal intervals) and ownership. Characterize each group.

2. Make analytical grouping of companies by finding the relationships between the volume of investment and the amount of profit.

3. Make grouping of enterprises by branch purpose of investment. Characterize each group of businesses by the amount of enterprises and the volume of investment (in general and in % to the total).

4. Make the grouping of companies by the degree of investment risk. Characterize each group by the amount of businesses and average volume of investments.

5. Portray graphically the grouping of enterprises in terms of exports as a histogram.

The results of groupings are to be presented in the form of statistical tables.

Part 2

On the basis of the grouping done in p. 2, part 1,determine for the factor variable:

1. Mean, mode and median.

2. Indicators of variation (dispersion, standard deviation, coefficient of variation).

Table 1

Foreign economic activity of enterprises in Ukraine, 2006 (conditional data)

№ of enterprise	Form of ownership	The volume of investments, thsd. USD	Sectoral destination of investments	Level of investment risk	The volume of export, thsd. USD	Profit, thsd. USD
	Joint		Agriculture	High- risk
	Foreign		Industry	Medium-risk
	State		Trade	Low- risk
	Private		Transport	Medium-risk
	Joint		Services	Medium-risk
	Foreign		Industry	Low- risk
	State		Industry	Low- risk
	Private		Science	High- risk
	Joint		Industry	Medium-risk
	Foreign		Trade	Low- risk
	State		Transport	Low- risk
	Private		Science	Low- risk
	Joint		Industry	High- risk
	Joint		Agriculture	Medium-risk
	Foreign		Agriculture	Low- risk
	State		Industry	Low- risk
	Private		Trade	High- risk
	Joint		Transport	Medium-risk
	Private		Services	Low- risk
	Joint		Industry	Medium-risk