assume a model and a disturbance term u: Y= a+b*x+u
choose 30 obs of data for x, and values for the parameters of the model
c)generate a disturbance term using a normal disturibution with zero mean and unit varinace. then generate the value of Y
d)regress Y on x using the ols estimation technique and collect the estimated coefficient b1 and b2
repeat c) and d) 200 times and generate two scatter plot graphs, one for each b1 and b2.