Question: C. What is a cost function in the context of linear regression? 1. A function that represents the difference between the predicted and actual values

C. What is a cost function in the context of linear regression?

1. A function that represents the difference between the predicted and actual values of the dependent variable 2. A function that represents the sum of the predicted and actual values of the dependent variable 3. A function that represents the product of the predicted and actual values of the dependent variable 4. None of the above

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