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Table 2 Basic statistical characteristics of variables

From: Do spatial differences in the personal car market reflect a centre-periphery structure? The case of Poland

Variable Arithmetic mean (\( \overline{x}\Big) \) Minimum Maximum Standard deviation (σx) Coefficient of variationa
Index of centrality/peripherality 617.4 174.3 3403.5 325.9 0.528
Number of personal cars per 1000 inhabitants 412.9 206.1 1252.8 57.7 0.140
Number of new cars sold per 1000 inhabitants 2.8 0.0 21.0 1.7 0.597
Number of imported second-hand cars per 1000 inhabitants 26.8 8.9 77.0 6.4 0.238
Average age of cars 15.7 12.1 19.0 1.1 0.073
  1. aThis is a synthetic measure of spatial differences of a given variable and is calculated by the formula: σx/\( \overline{x} \)
  2. Source: own elaboration based on the Ministry of Finance and Central Vehicle Agency data