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What is the probability of selecting exactly two balls of the same color?
The probability that both balls are the same color is 0.44.
What is the probability of white?
Then, the probability of non-having a white ball in two attempts is either 56/156=14/39 if you keep the ball outside, or 64/169 if you did put in back in the bag. Meaning that the probability of having at least one white is 25/39, or 105/169, depending on your exact setup.
What is the probability of selecting 2 both times?
Just multiply the probability of the first event by the second. For example, if the probability of event A is 2/9 and the probability of event B is 3/9 then the probability of both events happening at the same time is (2/9)*(3/9) = 6/81 = 2/27.
How many red and white balls are there in the box?
There are 3 boxes, the first one containing 1 white, 2 red and 3 black balls; the second one containing 2 white, 3 red and 1 black ball and the third one containing 3 white, 1 red and 2 black balls. A box is chosen at random and from it two balls are drawn at random. One ball is red and the other, white.
How many balls are in the box of the lottery?
>> There are 3 boxes, the firs… There are 3 boxes, the first one containing 1 white, 2 red and 3 black balls; the second one containing 2 white, 3 red and 1 black ball and the third one containing 3 white, 1 red and 2 black balls. A box is chosen at random and from it two balls are drawn at random.
How many balls are there in a bag of draw?
A bag contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the bag, if at least one black ball is to be included in the draw | Permutation and Combination Questions Answers MCQ | Quantitative Aptitude
What is box 1 and Box 2 in a coin toss?
Box 1 contains 2 red balls and 1 blue ball. Box 2 contains 3 blue balls and 1 red ball. A coin is tossed. If it falls heads up, box 1 is selected and a ball is drawn. If it falls tails up, box 2 is selected and a ball is drawn. If the ball is red, what is the probability it came from box 1?
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