Linear regression quiz

What type of machine learning algorithm makes predictions when you have a set of input data with labels?

• Supervised learning

• Unsupervised learning

• Reinforcement learning

• All

What category of machine learning algorithm finds patterns in the data when the data is not labeled?

• Supervised learning

• Unsupervised learning

• Reinforcement learning

• All

In linear regression. Suppose we set θ0=−2, θ1=0.5. What is hθ(4)?

• 0

• -1.5

• 1.5

• 1

Linear Regression is a supervised machine learning algorithm.

• True

• False

Which of the following is true about Residuals ?

• Lower is better

• Higher is better

• A or B depend on the situation

• None of these

Overfitting is more likely when you have huge amount of data to train?

• TRUE

• FALSE

Suppose you have to predict the salary of employees from their experience. This is:

• Classification task

• Regression task

• Clustering task

• None

How many coefficients do you need to estimate in a simple linear regression model (One independent variable)?

• 0

• 1

• 2

• 3

What are the two types of Supervised Learning?

• Classification

• Regression

• Progression

• Declassification

In tabular data, what does a row and column represent?

• Row = feature, column = observation

• Column = feature, row = observation