How is the answer to part b: 8/15? I am calculating 7/15... An urn contains 2...
How is the answer to part b: 8/15? I am calculating 7/15...
An urn contains 2 blue marbles and 4 red marbles. One marble is removed, its color noted, and not replaced. A second marble is removed and its color is noted.
(a) What is the probability that both marbles are blue? red?
(b) What is the probability that exactly one marble is blue?
Homework Answers
Here 2 blue and 4 red marbles so we are to find
P( exactly one marble is blue)=
(2/6) *(4/5) +(4/6) *(2/5) =16/30=8/15
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How is the answer to part b: 8/15? I am calculating 7/15...
An urn contains 2...
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An urn contains three red marbles and five blue marbles. A marble is picked at random and is not replaced. A second marble is then picked from the urn. Determine the following: (a) P(both marbles are red) (b) P(both marbles are blue) (c)P(both marbles are the same color)
An urn contains 2 red and 2 green marbles. We pick a marble, record its color,...
An urn contains 2 red and 2 green marbles. We pick a marble, record its color, and replace it. We repeat this procedure a second and a third time. The probability distribution for the number of red marbles is given below. Number of red marbles 0 1 2 3 Probability 1/8 3/8 3/8 1/8 For this distribution, the probability of exactly one red marble is given by: O 7/8. 113. оо
An urn contains 15 different colored marbles, 7 are red, 5 are blue, and 3 are...
An urn contains 15 different colored marbles, 7 are red, 5 are blue, and 3 are green. Part 1. If two balls are randomly picked from the urn without replacement a) b) Determine the sample space What is the probability of grabbing a red marble on the first pick and then a green marble on the second pick? Did you use the classical or empirical approach to calculate the probability in part b? Are these events independent or dependent? Disjoint...
EXERCISE 16. Urn A contains 4 white and 3 red marbles, urn B contains 2 white...
EXERCISE 16. Urn A contains 4 white and 3 red marbles, urn B contains 2 white and 5 red marbles. A marble is to be selected from urn A and another marble is to be selected from urn B. What is the probability that the two marbles selected are white? Answer. 8/49. Please show your workings. I have shown the possible answer already. Thank you!
1. An urn initially contains 6 red and 8 green balls. Each time a ball is...
1. An urn initially contains 6 red and 8 green balls. Each time
a ball is selected, its color is recorded, and it is replaced in
the urn along with 2 other balls of the same color. Compute the
probability that:
(a) The first 2 balls selected are green and the next 2 are
red?
(b) Of the first 4 balls selected, exactly 2 are green?
(c) If the second ball selected is green, what is the
probability that the...
a) A urn contains one red marble, one green marble and one blue marble. An experiment...
a) A urn contains one red marble, one green marble and one blue marble. An experiment consists of taking one marble from the urn, then returning it and drawing a second marble. What is the probability that exactly one red marble is selected? b) What is the probability that exactly one red marble is selected if the experiment is without replacement (marble is not returned)?
An urn contains 3 red balls, 2 blue balls, and 5 white balls. A ball is...
An urn contains 3 red balls, 2 blue balls, and 5 white balls. A ball is selected and its color noted. Then it is replaced. A second ball is selected and its color noted. Find the probability of: Selecting 2 blue balls (round to 4 decimal places)
please help me 2 questions 15) Experiment: An urn contains 12 fuchsia marbles and 5 magenta...
please help me 2 questions
15) Experiment: An urn contains 12 fuchsia marbles and 5 magenta marbles. Two marbles are drawn without replacement. What is the probability that both marbles are magenta? A) 0.2206 B) 0.4983 C) 0.4853 D) 0.0865 E) 0.074 16) Experiment: An urn contains 4 blue marbles and 8 orange marbles. Two marbles are drawn without replacement. What is the probability that a blue and orange marble are drawn? A) 0.4444 B) 0.2424 C) 0.1212 D) 0.4848...
An urn contains 14 red marbles, 29 blue marbles, and 43 yellow marbles. One marble is...
An urn contains 14 red marbles, 29 blue marbles, and 43 yellow marbles. One marble is to be chosen from the urn without looking. What is the probability of choosing a red marble?
An urn contains 21 red marbles, 19 blue marbles, and 40 yellow marbles. One marble is...
An urn contains 21 red marbles, 19 blue marbles, and 40 yellow marbles. One marble is to be chosen from the urn without looking. What is the probability of choosing a red or a blue marble? Your answer should be rounded to 4 decimal places.
An urn contains 2 red and 2 green marbles. We pick a marble, record its color, and replace it. We repeat this procedure a second and a third time. The probability distribution for the number of red marbles is given below. Number of red marbles 0 1 2 3 Probability 1/8 3/8 3/8 1/8 For this distribution, the probability of exactly one red marble is given by: O 7/8. 113. оо
An urn contains 15 different colored marbles, 7 are red, 5 are blue, and 3 are green. Part 1. If two balls are randomly picked from the urn without replacement a) b) Determine the sample space What is the probability of grabbing a red marble on the first pick and then a green marble on the second pick? Did you use the classical or empirical approach to calculate the probability in part b? Are these events independent or dependent? Disjoint...
1. An urn initially contains 6 red and 8 green balls. Each time
a ball is selected, its color is recorded, and it is replaced in
the urn along with 2 other balls of the same color. Compute the
probability that:
(a) The first 2 balls selected are green and the next 2 are
red?
(b) Of the first 4 balls selected, exactly 2 are green?
(c) If the second ball selected is green, what is the
probability that the...
a) A urn contains one red marble, one green marble and one blue marble. An experiment consists of taking one marble from the urn, then returning it and drawing a second marble. What is the probability that exactly one red marble is selected? b) What is the probability that exactly one red marble is selected if the experiment is without replacement (marble is not returned)?
please help me 2 questions
15) Experiment: An urn contains 12 fuchsia marbles and 5 magenta marbles. Two marbles are drawn without replacement. What is the probability that both marbles are magenta? A) 0.2206 B) 0.4983 C) 0.4853 D) 0.0865 E) 0.074 16) Experiment: An urn contains 4 blue marbles and 8 orange marbles. Two marbles are drawn without replacement. What is the probability that a blue and orange marble are drawn? A) 0.4444 B) 0.2424 C) 0.1212 D) 0.4848...
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