An urn contains 7 white and 3 red balls. Two balls are drawn together at random from the urn. Find the expected number of white balls drawn.

Q: Suppose a jar contains 13 red marbles and 36 blue marbles. If you reach in the jar and pull out 2…

A: We have total number of marbles in the jar = 13 red marbles + 36 blue marbles = 49. We can pull out…

Q: An urn contains 11 red, 10 white and 37 blue marbles. A child selects two marbles at random and…

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Q: A bag contains 9 Cherry Starbursts and 21 other flavored Starburts. 12 Starbursts are chosen…

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Q: Suppose an urn contains 12 balls, with 7 red and 5 black. If you randomly select 4 balls without…

A: Introduction: According to the permutation rule, if r distinct items are to be chosen from n items…

Q: An urn contains 5 white balls and 6 red balls. A second urn contains 8 white balls and 4 red balls.…

A: Given data: The numbers of white balls in the first urn are w1=5. The numbers of red balls in the…

Q: Suppose a box contains 7 red balls & three blue balls. If 5 balls are selected at random without…

A: Hypergeometric distribution is given by

Q: Suppose a jar contains 14 red marbles and 20 blue marbles. If you reach in the jar and pull out 2…

A: Given, no of red marbles=14 no of blue marbles=20 Total marbles=34 P(both are red.)=?

Q: An urn contains 15 red, 25 white and 36 blue marbles. A child selects two marbles at random and…

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Q: A bag contains 3 white, 4 black and 5 red balls. Three balls are dra random one after another…

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Q: Suppose a jar contains 12 red marbles and 17 blue marbles. If you reach in the jar and pull out 2…

A: We have to find out given probabiity...

Q: An urn contains 6 red and 4 black balls. They are withdrawn from the urn, one at a time and without…

A: An urn contains (6 red and 4 black balls) Balls are withdrawn from urn one at a time and without…

Q: If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that…

A: Total number of red marbles = 18 Total number of blue marbles = 26 Total number of marbles = 18+26 =…

Q: Suppose a jar contains 13 red marbles and 35 blue marbles. If you reach in the jar and pull out 2…

A: Given problem Given that   Suppose a jar contains 13 red marbles and 35 blue marbles. If you reach…

Q: A contains 4 white and 6 black balls, while Bin B – 5 white and 3 black balls. A ball is picked up…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: A student organization committee consisting of 7 people to be formed by selecting from a group of 26…

A: We have to find given probability.

Q: A box contains 20 white balls and 10 black balls. 8 balls are drawn at random one after another…

A: Given;a box contains 20 white balls and 10 black balls. and 8 balls are drawn at randomone after…

Q: uppose a jar contains 12 red marbles and 36 blue marbles. If you reach in the jar and pull out 2…

A: Solution: Given information: Red marbles = 12 Blue marbles = 36 Total marbles = 12+36 Total marbles…

Q: An urn contains 1 black and 16 white balls. Balls are drawn at random, one at a time, until the…

A: To find the probability that at least 24 draws are needed until the black ball is selected, we need…

Q: Suppose that a bag contains 43 red balls, 54 blue balls, and 72 green balls, and that 2 balls are…

A: Given information- Total number of balls in a bag = 169 Number of red balls = 43 Number of blue…

Q: Suppose a jar contains 8 red marbles and 23 blue marbles. If you reach in the jar and pull out 2…

A: To find the probability that both marbles are red when two marbles are drawn at random from the jar,…

Q: An urn contains 7 red balls and 3 yellow balls.  If we randomly select 3 balls from the urn without…

A: An urn contains 7 red balls and 3 yellow balls.  If we randomly select 3 balls from the urn without…

Q: An urn contains 4 red, 4 black, 6 blue and 2 green balls. If five balls are randomly selected from…

A: Given,no.of red balls=4no.of black balls=4no.of blue balls=6no.of green balls=2total no.of balls=16

Q: Urn X contains 3 red and 2 white balls, and bowl Y contains 4 red and 3 white balls. A ball is drawn…

A: We have to use multiplication theory of probability to find the required probability.

Q: An urn contains 39 red, 29 white and 16 blue marbles. A child selects two marbles at random and…

A: Total Red Marbles = R=39 Total white Marbles = W=29 Total blue Marbles = B=16 Total Marbles=84

Q: In an urn there are 18 red and 15 white balls. We choose 8 balls without replacement. What is the…

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Q: We are randomly select 4 people from a group consisting of 6 politicans and 10 criminals. Find the…

A: Number of politicians = 6 Number of criminals = 10 Total number of people = 16

Q: Suppose a jar contains 8 red marbles and 37 blue marbles. If you reach in the jar and pull out 2…

A: From the provided information, Red marbles in a jar = 8 Blue marbles in jar = 37 Total marbles = 8 +…

Q: A bag contains 6 Cherry Starbursts and 24 other flavored Starburts. 11 Starbursts are chosen…

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Q: We have an urn with 5 red balls, 7 green balls and 4 white balls. Assume the probability of each…

A: We have an urn with 5 red balls, 7 green balls, and 4 white balls. Assume the probability of each…