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3 Cards in this Set

  • Front
  • Back
positive correlation
the two variables tend to move in the same direction; as the value of X increases, Y also tends to increase; when X decreases, Y decreases.
negative correlation
the two variables tend to go in opposite directions; as X increases, Y decreases; that is, an inverse relationship
coefficient of determination
the value r^2; measures the proportion of variability in one variable that can be determined form the relationship with the other variable