A bag contains 6 black and 7 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? Choose the correct choice from the following options:
A) 3/4 B) 7/13 C) 1/7 D) 1/8 E) 4/3
Let number of balls = (6 + 7)= 
<gadget id="calculator">(6 + 7)</gadget>
<output>13</output>
13.   Number of white balls= 7.   P (drawing a white ball) =7/13   Option 7/13.
<result>B</result>
A bag contains 6 black and 7 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?