What is the main component of a learning machine? a a network of simulated brain cells a program that can reason using logic a computer program that can modify itself O a mathematical function with adjustable parameters O a positronic brain O a quantum computer O a computer program that can simulate emotions 3 p Learning machines are trained on samples from a training set and evaluated on separate samples from a test set. Check all true statements. the error on the test set is always smaller than on the training set the error on the test set is always larger than on the training set the gap between training error and test error gets smaller as the number of training samples increases the training error gets smaller as the number of training samples increases the test error gets smaller as the number of training samples increases