:2. Here are two statements about measurement error.
 
 	
 A.  bias is a kind of chance error.  <p>

B.  chance error is a kind of bias.  <p>

Then <p>

a.  Statements A and B are both true
 b.  Statements A and B are both false
 c.  Statement A is true but statement B is false
 d.  Statement B is true but statement A is false