1. np.random.rand(3,2)
    2. array([[ 0.14022471,  0.96360618],  #random
    3.        [ 0.37601032,  0.25528411],  #random
    4.        [ 0.49313049,  0.94909878]]) #random

    Create an array of the given shape and populate it with random samples from a uniform distribution over [0, 1).