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?
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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
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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