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In the linear model yi = β0 + β1xi + εi, εi is called the:Multiple choice question.regression coefficient.independent variable.dependent variable.error.

Question

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Solution

Break Down the Problem

  1. Identify the components of the linear equation yi=β0+β1xi+ϵiy_i = \beta_0 + \beta_1 x_i + \epsilon_i.
  2. Determine the meaning of ϵi \epsilon_i in the context of the model.

Relevant Concepts

  1. In a linear regression model:
    • yi y_i is the dependent variable (the outcome).
    • xi x_i is the independent variable (the predictor).
    • β0 \beta_0 is the y-intercept.
    • β1 \beta_1 is the regression coefficient (slope).
    • ϵi \epsilon_i represents the error term (the difference between observed and predicted values).

Analysis and Detail

  1. The term ϵi \epsilon_i captures the variation in y y that cannot be explained by the linear relationship with x x . It accounts for factors not included in the model, measurement errors, or inherent randomness in the data.

Verify and Summarize

  1. By reviewing the definitions:
    • Regression coefficient refers to β1 \beta_1 .
    • Independent variable refers to xi x_i .
    • Dependent variable refers to yi y_i .
    • Error refers to ϵi \epsilon_i .

Final Answer

The correct answer is error.

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