EducationThe set of all people who hold a computer science degree in a population.
LifestyleThe set of all Europeans who smoke.
ProfessionCurrently active airline pilots on a global basis.
AbilitiesThe set of all people on a social network who self-identify as being good at public speaking.
ExperiencesAmericans who have traveled more than 2 million miles by aircraft in the past ten years.
LocationResidents of Japan who live within 200 meters of a farm.
PhysicalAustrians with a body mass index over 25.
TreatmentThe set of people who have taken a particular medication for at least a year.
PerformanceThe students at a school who have an A average.
AffinityPeople on a social network who say they like samba dance.
SubculturesThe set of slow food enthusiasts in a city.
A group of people who share a common characteristic.