true or false

1) For sufficiently large integer values of n, 2ⁿ < n!

2) rational numbers equals even integer numbers union(U) integer odd numbers

3) For two sets A and B, if A intersect B is then A and B are said to be disjoint.

4) It is possible for the probabilities of non-disjoint events to sum to >1

5) If probability P(A) = x then P(Ac) = 1 x. Recall that Ac means A complement.