Chapter 2 - Set Theory - 2.4 Set Operations and Venn Diagrams with Three Sets - Exercise Set 2.4 - Page 93: 79

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

From the given Venn diagram the regions II, III, V, VI represents the set of students who scored 90% or above in Exam 2. The set of students = {Ann, Jose, Al, Gavin, Amy, Ron, Grace}