gaussian distribution-Synonym(s): gaussian curve. graphical distribution of normal data, following a bell-shaped curve; the mean, median and mode all coincide at the central high point of the curve; 67% of data lie within Â± 1 standard deviation (sd) of the spread of the sample data; 95% lie within Â± 2 sds.
The Los Angeles plant is one of Exxon's four refineries in the United States that do not have an adjacent chemical plant. A second, in Chalmette, Louisiana, which Exxon operates jointly with Petroleos de Venezuela, is currently on the block. The other two refineries that are not integrated are located in Joliet, Illinois, and Billings, Montana, and process North American crude oil. As a matter of practice, we do not comment on market speculation or rumor, said Todd Spitler, a spokesman for Exxon Mobil.
Both incoming crude oil and the outgoing final products need to be stored. These liquids are stored in large tanks on a tank farm near the refinery. Pipelines then carry the final products from the tank farm to other tanks across the country. Refineries process crude oil into many different petroleum products.