Q 1: A box contains 10 red balls, 11 black balls, and 4 white balls. If four balls are drawn in a row without turning back, calculate the following: 1. The probability that all the balls are black. 2. The probability that two of them are red and two are black 3. The probability that at least one of them is black. 4. Probability that the first balls are black, second red, third white, and fourth black 5. Probability that at least one of them is 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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Q 1: A box contains 10 red balls, 11 black balls, and 4 white balls. If four balls are drawn in a row
without turning back, calculate the following: 1. The probability that all the balls are black. 2. The
probability that two of them are red and two are black 3. The probability that at least one of them is
black. 4. Probability that the first balls are black, second red, third white, and fourth black 5.
Probability that at least one of them is red
Transcribed Image Text:Q 1: A box contains 10 red balls, 11 black balls, and 4 white balls. If four balls are drawn in a row without turning back, calculate the following: 1. The probability that all the balls are black. 2. The probability that two of them are red and two are black 3. The probability that at least one of them is black. 4. Probability that the first balls are black, second red, third white, and fourth black 5. Probability that at least one of them is red
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