Tasks Statistics 17-18

Problem 17.
The following data is available for 8 homogeneous stores:
Trade turnover, thousand rubles 7 10 15 20 30 45 60 120
Level of distribution costs in relation to trade turnover, 10.0 9.0 7.5 6.0 6.3 5.8 5.4 5.0
Find the equation for the correlation between trade turnover and the level of distribution costs.
Calculate elasticity coefficients, indicators of the closeness of the correlation. Draw conclusions.

Problem No. 18
The following data are available for 2006:
population, thousand people: as of January 1 - 430.0; on April 1 - 430.2; as of July 1, 430.3; on October 1 - 430.7; as of January 1, 2007 430.8
. number of deaths, people - 8 170
. number of those who left for permanent residence in other settlements, people. - 570
. vitality factor - 1.075
. share of women in the total population - 58
. share of women aged 15-49 years in the total number of women - 39
Determine: fertility, mortality, natural, mechanical and general population growth rates; number of births; the number of people arriving for permanent residence from other localities; special birth rate.