A box contains 12 red balls, 9 black balls, and 5 white balls. If you pulled four balls in a row and without return. Calculate the following: 1- The probability that all the balls are red. 2- The probability that two of them are white and two are black. 3- The probability that at least one of them is white. The probability that the balls in the first order are white, the second red, the third white, and the fourth black.

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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A box contains 12 red balls, 9 black balls, and 5 white balls. If you pulled four balls in a row and without return.
Calculate
the following:
1- The probability that all the balls are red.
2- The probability that two of them are white and two are black.
3- The probability that at least one of them is white.
The probability that the balls in the first order are white, the second red, the third white, and the fourth black.
5- The probability that at least one of them is white.
II
Transcribed Image Text:A box contains 12 red balls, 9 black balls, and 5 white balls. If you pulled four balls in a row and without return. Calculate the following: 1- The probability that all the balls are red. 2- The probability that two of them are white and two are black. 3- The probability that at least one of them is white. The probability that the balls in the first order are white, the second red, the third white, and the fourth black. 5- The probability that at least one of them is white. II
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