1. 10% of families own both a car and a phone 2. 35% of families own either car or a phone 3. 40,000 families live in the town? Which of the... View Article
1) A is always a number of the complement of B 2) B is always a subset of A 3) A and B are always disjoint 4) A and the complement of B... View Article
Suppose A1, A2, …...A30 are thirty sets each having 5 elements and B1, B2 …. Bn is n sets each with 3 elements. Let ⋃i=130 Ai ⋃j=1n Bj = S and... View Article
Statement I A = {(x, y) ∈ R × R : y – x is an integer} is an equivalence relation on R. Statement 2 B = {(x, y) ∈ R × R : x = αy for some... View Article