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: Those born roughly between 1963-1980 (now aged early-30s to mid-40s.) Gen-Xers are often labelled the slacker generation, uncommitted and unfocused. The why me? generation.