Now because of these two problems  we violate  er a couple of assumptions  of ordinary lease squares  right, and as a result, the upshot of this  is that we get biased estimates  of our parameters A B C and D,right, they will be biased  and also they won't  have the minimum variants property  right, they won't be the best estimators  you, the statistics you talk about blue estimates, best linear and biased  alright.