WLD Incorporated, a national data-collection agency, estimates that 60% of all customers at home warehouse stores (in the United
States) own their own home. WLD also estimates that 54% of all home warehouse customers have lived at their current address for less than five years, and that 71% of all home warehouse customers own their own home or have lived at their current address for less than five years (or both). Using these estimates, what is the probability that a randomly selected home warehouse customer both owns her own home and has lived at her current address for less than five years
To be divisible by 6, an even number must also be divisible by 3. Two of every three even numbers are <em>not</em> divisible by 3, so are not divisible by 6.