sample_list = []
for i in range(50):
    c = random.randrange(0, 15)
    n = 0.4 * c - 0.8
    if n < 0:
        n = 0
    n = round(n, 2)
    pairs_list = [c, n]
    sample_list.append(pairs_list)
    new_list = []
    epsilon = int(random.normalvariate(0, 1))
    n_e = n + epsilon
    sim_list = [c, n_e]
    new_list.append(sim_list)

sample_list