Let A and B be subsets of a universal set U, n(U) = 80,n(A' O B') = 12,n(B – A) = 23,n(An B) = 19. Find n(A). %3D

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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3. Let A and B be subsets of a universal set U,
n(U) = 80, n(A' n B') = 12, n(B – A) = 23,n(A n B) = 19. Find n(A).
%3D
Transcribed Image Text:3. Let A and B be subsets of a universal set U, n(U) = 80, n(A' n B') = 12, n(B – A) = 23,n(A n B) = 19. Find n(A). %3D
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