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

A:

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: Suppose that four people are to be randomly selected from a group of 8 women and 5 men. What is the…

A: Given,Four people are to be randomly selected from a group of 8 women and 5 men.

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: An urn contains 2 red balls, 5 white balls, and 3 green balls. If one ball is selected at random,…

A:

Q: An urn contains 3 green, 2 blue and 4 red balls. 5 balls are selected at random without replacement.…

A:

Q: There are 2 blue balls, 1 white ball and 3 red balls in an urn. 2 balls are drawn at random. Find…

A: It is given that Number of blue balls = 2 Number of white balls = 1 Number of red balls = 3 Total =…

Q: An urn contains 6 red and 8 blue marbles. Five marbles are drawn at random from it without…

A:

Q: An urn contains 4 white and 3 red balls. Find the probability distribution of red balls in a random…

A:

Q: An urn contains 4 black balls and 6 white balls. What is the probability of getting 1 black and 1…

A: We have given An urn contains 4 black balls and 6 white balls. We have to find, What is the…

Q: A population of values has a normal distribution with a mean of 186.9 and a standard deviation of…

A: Given Information :  A population of values has a normal distribution with a mean of 186.9 and a…

Q: A bag contains 7 white, 6 red and 5 black balls. Two halls are drawn at random. Find the probability…

A:

Q: An urn contains 5 red pins, 7 blue pins, and 6 green pins. If 2 pins are drawn at random what is the…

A:

Q: Suppose a jar contains 648 red marbles and 292 blue marbles.  If you reach in the jar and pull out 2…

A: A jar contains 648 red marbles and 292 blue marbles, there are totally 940 marbles. Two marbles are…

Q: four marbles are chosen from an urn that contains 11 marbles, 7 yellow and 4 black. Find the…

A: GivenNo.of yellow marbles =7No.of black marbles =4Total no.of marbles =11

Q: There are 5 white, 4 black, and 3 red balls in an urn. We select 3 balls at random from this urn.…

A:

Q: The urn contains 5 black and 5 white balls. The probability of drawing two balls of the same colour

A: It is given that the urn contains 5 black and 5 white balls.  Total number of balls =10 We need to…

Q: A box has 12 balls, 4 are red and 8 are green.  Randomly choose 3 balls from the box without…

A: We have given that,  Total balls = 12  Red balls = 4  Green balls = 8  Then,  We will find the…

Q: Find the probability of drawing a black king and black queen from well shuffled deck of 52 cards.

A:

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: Find the probability of getting  5  face cards (king, queen, or jack) when  5  cards are drawn…

A: The total number of cards in a deck of cards.

Q: A box contains 5 red, 3 white and 6 blue balls. If 3 balls are drawn at random without replacement,…

A:

Q: An urn contains eight white balls and two red balls. A second urn contains two white balls and a red…

A: Here Take Probability of first Urn=P(F) Probability of second Urn=P(S) Probability of Red=P(R)…

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…

A:

Q: urn contains 5 white balls, 4 black balls and 3 red balls. If 3 balls are drawn simultaneously, find…

A:

Q: n urn contains 3 white balls and 4 red balls. A second urn contains 3 white balls and 3 red balls,…

A: An urn contains 3 white balls and 4 red balls. A second urn contains 3 white balls and 3 red balls…

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…

Q: Find the probability of getting a face card if a card is picked at random from a deck of 52 cards

A: Given information- We have given a deck of 52 cards. We have to find the probability of getting a…

Q: There are 3 red balls and 2 blue balls in a bag. balls will be drawn without replacement. Find the…

A: GivenNo.of red balls=3No.of blue balls=2Total no.of balls=5

Q: An urn contains 4 white balls and 2 red balls. A second urn contains 8 white balls and 1 red ball.…

A: We have given that,  For first urn :- White balls = 4  Red balls = 2 For second urn :- White balls =…