4. If the probability that student A will fail a certain statıs- tics examination is 0.5, the probability that student B will fail the examination is 0.2, and the probability that both student A and student B will fail the examination is 0.1, what is the probability that at least one of these two stu- dents will fail the examination? 5. For the conditions of Exercise 4, what is the probability that neither student A nor student B wvill fail the examina- tion?
4. If the probability that student A will fail a certain statıs- tics examination is 0.5, the probability that student B will fail the examination is 0.2, and the probability that both student A and student B will fail the examination is 0.1, what is the probability that at least one of these two stu- dents will fail the examination? 5. For the conditions of Exercise 4, what is the probability that neither student A nor student B wvill fail the examina- tion?
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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