Rework problem 4 from section 3.1 of your textbook, about events A and B of a sample space S, but assume that Pr[A]=0.2and Pr[B]=0.25. Find Pr[A∪B] under each of the following conditions: (1) If A⊂B, then Pr[A∪B]= (2) If A∩B=∅, then Pr[A∪B]=      (3) If A∩B′=∅, then Pr[A∪B]=

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 29E
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Rework problem 4 from section 3.1 of your textbook, about events A and B of a sample space S, but assume that Pr[A]=0.2and Pr[B]=0.25.

Find Pr[A∪B] under each of the following conditions:

(1) If A⊂B, then Pr[A∪B]=

(2) If A∩B=∅, then Pr[A∪B]=   

 

(3) If A∩B′=∅, then Pr[A∪B]=
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