Answer :
Final answer:
A multigenerational family is defined by the presence of at least three generations living together.
Explanation:
One key factor that defines a multigenerational family is when at least three generations live together in the same household. This can include grandparents, parents, and grandchildren all residing under one roof. Multigenerational living has become increasingly common in various ethnic groups and age categories, with a significant percentage of the population opting for this type of family structure.
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