For this, the activation function is the sigmoid function.

Write a python code to train a neural network, with one hidden layer of three nodes and an output layer of one node, on the following data (4 samples, the features are xi and X2, and the labels are y): X2 X1 0 1 0 1 1 0 0 1 1 1 Again, do not use classes. You may use a bias if you want