SOLUTION: one box contains 7 white balls and 2 black balls, another contains 6 white ball and 4 black balls. A card is drawn from a well shuffled deck and it is a spade 3 balls are drawn fro
Algebra.Com
Question 1156744: one box contains 7 white balls and 2 black balls, another contains 6 white ball and 4 black balls. A card is drawn from a well shuffled deck and it is a spade 3 balls are drawn from the first box, otherwise 3 balls are drawn from the second box.Find the probability of getting 2 white balls and 1 black ball.
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
The probability of drawing a spade is 1/4; the probability of another suit is 3/4.
If the balls are drawn from the first box, the probability of getting 2 white balls and 1 black ball is .
If the balls are drawn from the second box, the probability of getting 2 white balls and 1 black ball is .
P(2 white and 1 black) =
You can do the calculations....
RELATED QUESTIONS
combination
one bag contains 6 white balls and 8 black, and a second bag contains 3... (answered by Boreal)
combination
one bag contains 6 white balls and 8 black, and a second bag contains 3... (answered by Boreal)
combination
one bag contains 6 white balls and 8 black, and a second bag contains 3... (answered by Boreal)
A bag contains 4 white and 2 black balls. Another bag contains 3 white and 3 black balls. (answered by Edwin McCravy)
a box contains 6 identical red balls, 3 identical white balls and 5 identical black... (answered by Edwin McCravy)
a box contains 7 identical red balls, 4 identical white balls and 9 identical black... (answered by stanbon)
a box contains 6 red,4 white and 5 black balls .A person draws 4 balls from the box at... (answered by stanbon)
A box contains 6 red, 4 white and 5 black balls. A person draws 4 balls from the box at... (answered by stanbon)
A box contains 6 red, 4 white and 5 black balls. A man draws 4 balls from the box at... (answered by math_helper,Edwin McCravy)