An urn contains 7 white balls, 4 red balls, and 4 blue balls. What is the probability of selecting 9 balls such that there are 3 balls of each of different colors?

Given that An urn contains White balls = 7 Red balls = 4 Blue balls = 4 Total balls in urn = 7 + 4…

Answered: An urn contains 7 white balls, 4 red…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Similar questions

Two marbles are drawn from a bag that is 3 red, 4 purple, and 2 black. Find the probability that you picked Atleast one purple. You must draw the tree diagram.
A box1 contains 6 red and 7 black balls. Another box2 contains 5 red and 4 black balls.One ball is selected from each box. What is the probability that they will be of thedifferent color?
In a box there are 3 red, 4 blue, and 5 white marbles. If 3 marbles are selected at random and the colors are noted, find the probability that all are white given that all are the same color.
The mathematics department of a college has 8 male professors, 11 female professors, 14 male teaching assistants, and 7 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a professor or a female.
An urn contains 5 green, 6 blue, and 4 red balls. You take 3 balls out of the urn, one after the other, without replacement. Compute the probability that the third ball is red given that the first two balls are green.
A ball is chosen at random out of a bowl that contains 3 red balls, 2 green balls, and 1 blue ball, and then a selection is made from the remaining 5 balls. Find the probability that a red ball and a green ball are selected.
Suppose an urn contains 8 red and 4 white balls. Draw two balls without replacement. What is the probability that both are red?
A bag contains 6 blue,3 red and 2 black balls. If 2balls are drawn at random fromthe bag, not replaced and thenanother ball is drawn. Whatis the probability of drawing2 blue balls and 1 black ball?
A box contains 6 red, 4 white and 5 black balls. A person draws 4 balls from the box at random. Find the probability that among the balls drawn, there is at least one ball of each colour.
The mathematics department of a college has 6 male professors, 11 female professors, 10 male teaching assistants, and 12 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching assistant or a female.
A team of five persons are to be selected from a group of 4men, 3 women and 3 childrens. What is the probability that team comprises of exactly two women?

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