WEEK 2 - Binary Classification

At 6:03 , the vector capital X is made up of x1,x2 and so on (column vectors) . Are x1,x2 features or training sample number 1,2 and so on

Hey @Abdullah_Babar,
Welcome to the community. x^{(1)}, x^{(2)} …, denotes the 1st, 2nd, … training examples respectively, and not the 1st, 2nd, … features of all the examples stacked together. I hope this helps.