3. [40 marks] (Linear Regression) Manually train a linear function based on the following training instances (either batch or stochastic gradient descent algorithms). The initial values of parameters are 0, = 0,01 = 0,02 = 0. The learning rate a is 0.5. Please update each parameter at least five times. X1 X2 0 0 1 1 0 1 0 1 2 3 3 4