Question

Which of the the following are true regarding regression models? Select all that apply. Group of...

Which of the the following are true regarding regression models? Select all that apply.

Group of answer choices

Errors sum to a large number.

The relationship between the dependent variable and independent variables must be non-linear.

It is used to determine if one or more independent variables affect the dependent variable.

The error is found by subtracting the actual value from the predicted value.

Observations must be independent.

Math   Statistics-And-Probability   
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Answer #1
  • It is used to determine if one or more independent variables affects tye dependent variable.
  • The error is found by subtractingthe actual value from predicted value. Given as e = y - y^ { y = actual value , y^= predicted value , e = error }
  • Observations must be independent.

Note -: Since error is distributed normally i.e.,

It means mean of error is zero that means sum of error is also zero.

The relationship between dependent and independent variable can be linear as well as non-linear.

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