SOLUTION: A box contains 4 red, 7 blue and 6 white balls. If a ball is chosen at random, a. what is the probability that it is not red? b. what is the probability to draw 3 balls of differ

Algebra ->  Probability-and-statistics -> SOLUTION: A box contains 4 red, 7 blue and 6 white balls. If a ball is chosen at random, a. what is the probability that it is not red? b. what is the probability to draw 3 balls of differ      Log On


   



Question 1109911: A box contains 4 red, 7 blue and 6 white balls. If a ball is chosen at random,
a. what is the probability that it is not red?
b. what is the probability to draw 3 balls of different colors?

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
there are 17 balls in the box
:
a) Probability (P) the ball chosen is not red is 13/17
:
b) P of drawing three different colored balls is (4/17) * (7/16) * (6/15) is 168/4080 = 7/170
:
Note answer to b assumes a ball is not replaced after each draw
: