If you were to choose a sample in order to study the current toy market for preschool aged children in Illinois, the universe would logically be defined as all______________________.
a) All children in Illinois
b) Families in Illinois that have preschool children
c) People in Illinois who had preschool children in the past
d) Preschools in Illinois who will be admitting student in the following year
e) Families with children in Illinois
