When two events (call them A and B) are Mutually Exclusive it is impossible for them to happen together: P(A and B) = 0. The probability of A and B together equals 0 (impossible).
Generation Z. Generation Z (also known as The Founders, Post-Millennials, the iGeneration, Plurals or the Homeland Generation) is the demographic cohort after the Millennials.
Generation X or Gen-X is the name given to the generation of Americans born between 1961 and 1980. Generation X follows the Baby Boom generation and precedes Generation Y (Gen-Y) or the Millennial generation. Next Up.