From a bag containing 4 white and 5 black balls 3 are drawn at random. The odds against these being all black balls is

From a bag containing 4 white and 5 black balls a man draws 3 at random, what are the odds against these being all black?

A bag contains 5 white and 7 black balls and a man draws 4 balls at random. The odds against these being all black is

From a bag containing 3 red and 5 black balls. One ball is drawn at random. The odds against for getting a red ball are

A bag contains 3 white and 5 black balls. A ball is drawn at random. Find the chance that it is a black ball.

From a bag containing 4 white balls and 5 black balls a person draws 3 balls at random. The odds in favour of these 3 balls being black are

A bag contains 4 white and 5 black balls. A ball is drawn at random from the bag. Find the probability that the ball drawn is white.

A bag contains 4 white balls and 3 black balls. If two balls are drawn at random, then mean of number of white balls is

A bag contains 8 white and 7 black balls and another bag contains 5 white and 4 black balls. A ball is drawn at random from the first bag and put it into second bag. Now if a ball is drawn at random from the second bag. Find the probability that the ball drawn is white.