An urn contains three red balls numbered 1, 2, 3, four white balls numbered 4, 5, 6, 7, and three black balls numbered 8, 9, 10. A ball is drawn from the urn. (Enter your probabilities as fractions.) (a) What is the probability that it is red? 0.3 (b) What is the probability that it is odd-numbered? 0.5 (c) What is the probability that it is red and odd-numbered? 0.2 (d) What is the probability that it is red or odd-numbered? (e) What is the probability that it is not 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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An urn contains three red balls numbered 1, 2, 3, four white balls numbered 4, 5, 6, 7, and three black balls numbered 8, 9, 10. A ball is drawn from the urn. (Enter your probabilities as fractions.)
(a) What is the probability that it is red?
0.3
(b) What is the probability that it is odd-numbered?
0.5
(c) What is the probability that it is red and odd-numbered?
0.2
(d) What is the probability that it is red or odd-numbered?
(e) What is the probability that it is not black?
Transcribed Image Text:An urn contains three red balls numbered 1, 2, 3, four white balls numbered 4, 5, 6, 7, and three black balls numbered 8, 9, 10. A ball is drawn from the urn. (Enter your probabilities as fractions.) (a) What is the probability that it is red? 0.3 (b) What is the probability that it is odd-numbered? 0.5 (c) What is the probability that it is red and odd-numbered? 0.2 (d) What is the probability that it is red or odd-numbered? (e) What is the probability that it is not black?
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