Use the Venn diagram below to find the number of elements in the region.
-n(A)
A) 9
B) 12
C) 4
D) 17

Question

Use the Venn diagram below to find the number of elements in the region. 
-n(A)
A) 9 
B) 12 
C) 4 
D) 17

Quizplus · Accepted Answer

The region includes all elements in set A, set B, and the overlap of sets A and B. From the diagram, we can see that n(A) = 9, n(B) = 8, and the overlap of sets A and B has 9 elements. Therefore, the total number of elements in the region is n(A) + n(B) - overlap of sets A and B = 9 + 8 - 9 = 8.

Use the Venn Diagram Below to Find the Number of Elements