Chapter 3

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Across
  1. 3. explains changes in the response variable
  2. 7. how closely points follow a clear form
  3. 10. the amount by which y is predicted to change when x increases by one unit
  4. 11. the graph used to show correlation that involves dots in different places
  5. 13. fraction of the variation in one variable that is accounted for by least-squraes regression on the other variable
  6. 16. a line that descries how a response variable y changes as an explanatory variable x changes
Down
  1. 1. measures the direction and strength of the linear relationship between two quantitative variables
  2. 2. the line that makes the sum of the squared residuals as small as possible
  3. 4. value of y when x=0
  4. 5. as one variable increases, the other one decreases
  5. 6. as one increases so does the other value of the variable
  6. 8. prediction for far ahead in the future. farther than the graph goes. it is dangerous
  7. 9. whether they are linear or not
  8. 12. measures an outcome of a study
  9. 14. positive or negative?
  10. 15. difference between an observed value of the response variable and the value predicted by the regression line