A company CEO asked the marketing research department to find the average age of consumers who bought the most profitable product made by the company.From survey data gathered two years ago,the researchers found the following table.Calculate the average age to give to the CEO. 
Definitions:
Includes Wife
Pertains to or involves the spouse in situations, decisions, or contexts.
Singular Proposition
A statement or assertion that refers to a single item or instance within a larger context.
Subject
The person, object, or concept that is being discussed or described in a sentence, book, movie, etc.
Collection
An accumulation of objects or data, often gathered or brought together based on a common criteria or interest.
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