NationMaster - Correlations > Transportation

	Variable	Strength
...and	Currency > Subdivision (inverse)	100%	[plot \| correlate \| graph]
...and	Environment > Groundwater withdrawals	27%	[plot \| correlate \| graph]
...and	Economy > Trade with US > US exports of nonfarm tractors and parts	26%	[plot \| correlate \| graph]
...and	Economy > Terms of trade	25%	[plot \| correlate \| graph]
...and	Health > % of population using improved drinking water sources > Urban (inverse)	19%	[plot \| correlate \| graph]
...and	Democracy > Female ministers	14%	[plot \| correlate \| graph]
...and	Health > Nutrition > % of households consuming iodized salt (inverse)	13%	[plot \| correlate \| graph]
...and	Crime > Prisoners > Share of prison capacity filled (inverse)	13%	[plot \| correlate \| graph]
...and	Environment > Wildness	13%	[plot \| correlate \| graph]
...and	Health > Spending > Private	13%	[plot \| correlate \| graph]
...and	Energy > Traditional fuel consumption (inverse)	12%	[plot \| correlate \| graph]
...and	Education > Enrolment ratio > Secondary level (inverse)	11%	[plot \| correlate \| graph]
	Average:	24%

About Correlations:

A correlation is a statistical measure of similarity between at least two given sets of data. NationMaster's correlations compare two variables from our database and reveal statistical relationships between them. The percentages you see represent the strength (or likelihood) that a change in the topic variable is matched by a change in the listed variables below it. But remember: These correlations do not imply causation, that is, one does not necessarily cause the other. Also, not all variables contain all countries, rather subsets of countries matched together.

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Detailed correlation information
Map & Graph: countries ranked

NOTES:

Outliers have been removed only where they are outside 3 standard deviations of the mean.
Only variable pairs where at least 15 countries match for each have been considered.
Strength is given by the correlation coefficient (R squared). It is the fraction of variation in Y that can be attributed to the variation in X. 100% signifies a perfect fit (R squared of 1). The top 50 such stats are displayed

DEFINITION: This entry states the total route length of the railway network and of its component parts by gauge: broad, dual, narrow, standard, and other.

SOURCE: CIA World Factbook, December 2003

Correlations > Transportation Statistics > Railways

Correlations between Transportation > Railways ...

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