11.   Customer service has become an important variable that separates the successful online trading companies from those that received a below-average ranking.

12.   Education, it turns out, is the most important variable.

13.   Price is the most important variable, but even here the HomeView staff tries to keep options open.

14.   While customers are the usual source of delays, the most important variable in restaurant speed these days is usually the size and training of the staff.

15.   An important variable in price forecasts for this year is whether Iraq will resume exporting crude at normal levels.

16.   Important variables are which party controls the Senate, the political mood of the time, and which justice is retiring.

17.   Whether veterans have private insurance or access to non-VA health providers are important variables in predicting use of VA services in networks, VISN officials said.