Suppose n(U) = 150, n(A) = 37, and n(B) = 84.
a. If n(A ∪ B) = 100, find n(A ∩ B) and draw a Venn diagram illustrating the composition of U.
b. If n(A ∪ B) = 121, find n(A ∩ B) and draw a Venn diagram illustrating the composition of U.
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