## Thinking Mathematically (6th Edition)

Published by Pearson

# Chapter 2 - Set Theory - 2.4 Set Operations and Venn Diagrams with Three Sets - Exercise Set 2.4: 89

#### Answer

The set of students are = {Ann, Al, Gavin, Amy, Ron, Grace}

#### Work Step by Step

From, The given Venn diagram, the set of students who scored 90% or above in Exam 2 represents the region II, III, V, VI. The set of students who scored 90% or above in Exam 1 and Exam 3 represents the region I, II, III, VI, VII, VIII. The set of students who scored 90% or above in Exam 2 and not on Exam 1 and Exam 3 represents the region II, III, VI. The set of students are = {Ann, Al, Gavin, Amy, Ron, Grace}.

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