SOLUTION: a bag contains 5 green, 3 orange and 4 yellow tennis balls. A ball is drawn and replaced. then a second ball is drawn. What is the probability that both are green? That both are

Algebra ->  Probability-and-statistics -> SOLUTION: a bag contains 5 green, 3 orange and 4 yellow tennis balls. A ball is drawn and replaced. then a second ball is drawn. What is the probability that both are green? That both are       Log On


   



Question 35321: a bag contains 5 green, 3 orange and 4 yellow tennis balls. A ball is drawn and replaced. then a second ball is drawn.
What is the probability that both are green?
That both are yellow?
That the first is orange and the second is green?

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
FIRST DRAW SUCCESS IS 5 OUT OF 12 OR 5/12 WITH REPLACXEMENT THE SECOND DRAW HAS THE SAME PROBABILITY OR 5/12 NOW WE MULTIPLY THESE TWO PROBABILITIES 5/12*5/12 AND WE GET 25/144 THAT BOTH ARE GREEN.
YELLOW SUCCESS IS 4/12 & 4/12 OR 16/144 OR 1/9.