Question 2
A real estate company wants to create a model to predict house prices based on the size of the house. They collect data from three recent sales. There are two features: size (hundreds of sq ft) and number of bedrooms. The data-matrix and the price vector (in hundreds of thousands of rupees) are:
The objective is to find the weight vector that minimizes the sum of squared errors given by the loss function:
If is the value that minimizes , then which of the following is ?



