4. Let A = {n e Z|n = 5r for some integer r} and B = {m e Z|m = 20s for some integer s}. a. Is A C B? Explain. %3D b. Is B C A? Explain.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 62E: Is it possible that P(AB)=P(A)? Explain.
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4. Let A = {n e Z|n = 5r for some integer r} and
B = {m e Z|m = 20s for some integer s}.
a. Is A C B? Explain.
%3D
b. Is B C A? Explain.
Transcribed Image Text:4. Let A = {n e Z|n = 5r for some integer r} and B = {m e Z|m = 20s for some integer s}. a. Is A C B? Explain. %3D b. Is B C A? Explain.
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