An urn contains 15 white balls and 6 green balls. A sample of seven is selected...
An urn contains 15 white balls and 6 green balls. A sample of seven is selected at random. What is the probability that the sample contains at least one green ball?
a) 0.258256 b) 0.741744 c) 0.000052 d) 0.944659 e) 0.999948
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An urn contains 15 white balls and 6 green balls. A sample of
seven is selected...
An urn contains 4 white balls and 6 red balls. A second urn contains 6 white...
An urn contains 4 white balls and 6 red balls. A second urn contains 6 white balls and 4 red balls. An urn is selected, and the probability of selecting the first urn is 0.8. A ball is drawn from the selected urn and replaced. Then another ball is drawn and replaced from the same urn. If both balls are white, what are the following probabilities? (Round your answers to three decimal places.) (a) the probability that the urn selected...
4. An urn contains 5 blue balls, 3 green balls, and 7 white balls. (a) A...
4. An urn contains 5 blue balls, 3 green balls, and 7 white balls. (a) A ball is selected from the urn. What are the odds the ball is green? (2 Two balls are selected without replacement. What are the odds the balls are blue and green? (c) Two balls are selected without replacement. What are the odds at least one is blue or at least one is green? (d) Two balls are selected without replacement. What are the odds...
Please answer the following question: An urn contains 12 red balls, 8 white balls and 6...
Please answer the following question:
An urn contains 12 red balls, 8 white balls and 6 green balls. One ball is to be selected from the urn, a) What's the probability that the ball will be green? b) What's the probability that the ball will be red and green? c) What's the probability that the ball will not be white?
Urn A contains seven white balls and four black balls. Urn B contains six white balls...
Urn A contains seven white balls and four black balls. Urn B contains six white balls and three black balls. A ball is drawn from Urn A and then transferred to Urn B. A ball is then drawn from Urn B. What is the probability that the transferred ball was black given that the second ball drawn was black? (Round your answer to three decimal places.)
5. Suppose that the first urn contains 3 blue balls, 2 green balls and 2 white balls the second u...
5. Suppose that the first urn contains 3 blue balls, 2 green balls and 2 white balls the second urn contains 2 blue balls 3 green balls and 4 white balls. Take out one ball from each urn. (1) Find the probability that at least one blue ball. (2) Find the probability that one blue and one white. I(3) Given at least one ball is blue, ind the probability that one blue and one white.
5. Suppose that the first...
An urn contains 5 blue balls, 5 white balls, 5 red balls, and 5 green balls....
An urn contains 5 blue balls, 5 white balls, 5 red balls, and 5 green balls. Larry is selecting 4 balls at random one after the other without replacement. What is the probability that at least one of the selected balls is blue?
An urn contains 10 white and 6 black balls. Balls are randomly selected, one at a...
An urn contains 10 white and 6 black balls. Balls are randomly selected, one at a time, until a black one is obtained. If we assume that each ball selected is replaced before the next one is drawn, what is the probability that a) exactly 5 draws are needed? b) at least 3 draws are needed?
7. An urn contains four black and eight white balls. A sample of five balls is...
7. An urn contains four black and eight white balls. A sample of five balls is selected from the urn repeatedly, each time with replacement of the selected balls (thus restoring the urn to its original state). Let E be the event that the selected sample contains at most two white balls. (a) Find the probability of E (b) What is the expected number of selections until E happens? Name (c) What is the probability that E happens for the...
7. An urn contains four black and eight white balls. A sample of five balls is...
7. An urn contains four black and eight white balls. A sample of five balls is selected from the urn repeatedly, each time with replacement of the selected balls (thus restoring the urn to its original state). Let E be the event that the selected sample contains at most two white balls. (a) Find the probability of E (b) What is the expected number of selections until E happens? Name the random variable used. (c) What is the probability that...
Urn A contains four white balls and six black balls. Urn B contains three white balls...
Urn A contains four white balls and six black balls. Urn B
contains three white balls and seven black balls. A ball is drawn
from Urn A and then transferred to Urn B. A ball is then drawn from
Urn B. What is the probability that the transferred ball was black
given that the second ball drawn was black? (Round your answer to
three decimal places.)
n transferred to Urn A contains four white halls and six hlack balls. Urn...
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Please answer the following question:
An urn contains 12 red balls, 8 white balls and 6 green balls. One ball is to be selected from the urn, a) What's the probability that the ball will be green? b) What's the probability that the ball will be red and green? c) What's the probability that the ball will not be white?
5. Suppose that the first urn contains 3 blue balls, 2 green balls and 2 white balls the second urn contains 2 blue balls 3 green balls and 4 white balls. Take out one ball from each urn. (1) Find the probability that at least one blue ball. (2) Find the probability that one blue and one white. I(3) Given at least one ball is blue, ind the probability that one blue and one white.
5. Suppose that the first...
7. An urn contains four black and eight white balls. A sample of five balls is selected from the urn repeatedly, each time with replacement of the selected balls (thus restoring the urn to its original state). Let E be the event that the selected sample contains at most two white balls. (a) Find the probability of E (b) What is the expected number of selections until E happens? Name (c) What is the probability that E happens for the...
7. An urn contains four black and eight white balls. A sample of five balls is selected from the urn repeatedly, each time with replacement of the selected balls (thus restoring the urn to its original state). Let E be the event that the selected sample contains at most two white balls. (a) Find the probability of E (b) What is the expected number of selections until E happens? Name the random variable used. (c) What is the probability that...
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contains three white balls and seven black balls. A ball is drawn
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given that the second ball drawn was black? (Round your answer to
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