Write the Word or Phrase That Best Completes Each Statement

Short Answer

Write the word or phrase that best completes each statement or answers the question.
-The data in the table are typical prices for a gallon of regular leaded gasoline and a barrel of crude oil for the indicated years.


Summary statistics yield: $\mathrm { SS } _ { \mathrm { Xx } } = 1222.2771 , \mathrm { SS } _ { \mathrm { xy } } = 3031.7125 , \mathrm { SS } _ { \mathrm { yy } } = 9144.9375 , \overline { \mathrm { x } } = 21.2675$ , and $\overline { \mathrm { y } } = 95.0625$ . Find the least squares line that uses crude oil price to predict gasoline price.