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    IBEasyProbability10–12

    Set Notation & Venn Diagrams

    Notação de Conjuntos e Diagramas de Venn

    In a class of 35, 18 play football, 12 play basketball, and 5 play both. How many play neither?

    Use |A \cup B| = |A| + |B| - |A \cap B|

    Solution

    Step 1 of 2

    1. 1.|A \cup B| = 18 + 12 - 5 = 25