Generate data samples: generate 10 pair of data samples that satisfying

Y=2*X + 50 + a small random number

e.g.

import numpy as np

x_data = np.array([35., 38., 31., 20., 22., 25., 17., 60., 8., 60.])

y_data = 2*x_data+50+5*np.random.random(10)

X could be within any range, stored as an array (using numpy.array)