Using the given frequency distribution table find the grouped mean. 
Definitions:
Social Groups
are collections of individuals who interact with each other based on shared interests, beliefs, or characteristics, forming a sense of unity and identity.
Groupthink
A phenomenon where a group's desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.
Triad
A social relationship among three “nodes,” or social units (e.g., people, firms, organizations, countries, etc.).
Communicable Diseases
Diseases that are spread from one person to another through various ways, such as air, physical contact, or contaminated food and water.
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