Question: Compare and contrast correlation, simple regression, and multiple regression. Define the following: Observed Y Y prime Line of best fit Error Recall the formula for

  1. Compare and contrast correlation, simple regression, and multiple regression.

  1. Define the following:
  • Observed Y

  • Y prime

  • Line of best fit

  • Error

  1. Recall the formula for a simple regression line (the "line of best fit") and label each part.

  1. Relate the line of best fit to the error in prediction.

  1. Given a number of predictor variables, write the formula for a multiple regression equation and label each part. Predictor variables: age, race, treatment type. Outcome variable: depression intensity.

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