Linear Regression Model Selection Quiz

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What does a linear regression model assume about the relationship between input and output?

Logarithmic relationship

No relationship

Exponential relationship

Linear relationship (correct)

In the context of linear regression, what does 'm' represent in the equation y = mx + b?

Intercept

Output

Slope (correct)

Feature

Which term is used to refer to the input variable in a linear regression model?

Parameter

Target

Bias

Feature (correct)

What is the purpose of Mean Squared Error (MSE) in evaluating models?

Minimize loss Signup and view all the answers

Which term is used to describe the weights and biases in a linear regression model?

Parameters Signup and view all the answers

When comparing two models using MSE, which model is better if Model 1 has MSE = 0.825 and Model 2 has MSE = 3.25?

Model 1 Signup and view all the answers

In linear regression, what is the role of the loss function?

To evaluate the accuracy of the model Signup and view all the answers

Why does the loss function in linear regression not reach zero?

Inherent noise in the data Signup and view all the answers

What do parameters represent in linear regression models?

The coefficients of the model Signup and view all the answers

How does the functional form of a linear regression model differ from other machine learning models?

It is a linear relationship between input and output Signup and view all the answers

What is the objective when solving a linear regression problem?

Minimize the error between predicted and actual values Signup and view all the answers

Why is gradient descent often used to solve the parameter optimization problem in linear regression?

To find optimal parameter values that minimize the loss Signup and view all the answers

What is the purpose of a loss function in a model?

To evaluate the model's performance Signup and view all the answers

In the context of linear regression, what does MSE stand for?

Mean Squared Error Signup and view all the answers

What does a lower MSE value indicate about a model's predictions?

The model has better output predictions on average Signup and view all the answers

How does the number of examples in the training set (m) relate to the loss function?

It impacts how the loss function evaluates the model's performance Signup and view all the answers

What is the main objective when minimizing a loss function in linear regression?

To reduce errors in predicting output values Signup and view all the answers

In linear regression, what is the relationship between the model and the loss function?

The loss is a measure of how well the model is performing Signup and view all the answers