P(all have same colour) = 8C3/21C3 + 6C3/21C3 + 7C3/21C3 = 0.0835
P(none is white) = 15C3/21C3 = 0.3421
An urn contains 8 red marbles, 6 white marbles and 7 blue marbles. A child randomly...
An urn contains 39 red, 17 white and 30 blue marbles. A child selects two marbles at random and without replacement from the urn. Find the probability that the colors of the selected marbles are different. Hint: Three cases occur in the selection: no red, no white, no blue.
Homework: Section 3.3 Score: 5.5/8 5/8 answered • Question 6 An urn contains 9 red marbles, 5 white marbles, and 8 blue marbles marbles. A child randomly selects three (without replacement) from the urn. Round to four decimal places. a. Find the probability all three marbles are the same color. b. Find the probability that none of the three marbles are white. Submit Question esc 30
A bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. Randomly choose 2 marbles, one at a time, and without replacement. What is the probability that both are white? Select one: a. (8/23)*(7/23) = 56/529 = 0.106 b. (8/23)*(7/22) = 56/506 = 0.111 c. (8/23) + (7/22) = 337/506 = 0.6660 d. (1/8)*(1/7) = 1/56 = 0.018
a bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. randomly choose two marbles, one at time, and without replacement. fine the following
(1 point) A bag contains 9 red marbles, 6 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? The probability that all the marbles are red is | What is the probability that exactly two of the marbles are red? The probability that exactly two of the marbles are red is What is the probability that none of the marbles are red? The probability...
A bag contains 7 red marbles, 7 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. 1. What is the probability that all the marbles are red? 2. What is the probability that exactly two of the marbles are red? 3. What is the probability that none of the marbles are red?
A bag contains 9 red marbles, 7 white marbles, and 9 blue marbles. You draw 5 marbles out at random, without replacement. Write your answer as a reduced fraction. What is the probability that all the marbles are red? The probability that all the marbles are red is What is the probability that none of the marbles are red? The probability of picking no red marbles is
An urn contains three blue, four white, and five red balls. You take three balls out of the urn without replacement. What is the probability that all three balls are of the same color? The probability is (Type an integer or a simplified fraction.)
1. an urn contains 6 marbles of which 2 are blue, 2 are yellow and 2 are red. Sarah, Sally, and Sandra take their turn drawing two marbles each, one at a time, and without replacement. a. if sarah is the first to draw two marbles, what is the probability she draws two blue marbles? b. if sarah is the last to draw two marbles, what is the probability she draws two blue marbles. c. if sandra is the last...
A box contains 9 green marbles, 6 blue marbles, and 8 red marbles. Three marbles are selected at random from the box, one at a time, without replacement. Find the probability that the three marbles selected are all different colors.