A box contains \(4\) blue, \(7\) white, and \(5\) red marbles. If a marble is drawn at random from the box, what is the probability that it will be
                           
(i) white \(=\)   
 
(ii) blue \(=\)  
 
(iii) red \(=\)  
 
[NOTE: answer should be in \(2\) decimal points]