
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Transcribed Image Text:Q1.
a) In a group of 80 students, 50 have a laptop (A), 30 have a tablet (B) and 3 have both a
laptop and a tablet.
i) Draw a Venn diagram to represent this information.
A
47
3
27
B
3
ii) Find the probability that a student either only has a tablet or does not have a
laptop or both, using the equation P(A' U B) = P(A') + P(B) – P(A' ʼn B).
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