Which Aggregate Function Is Used to Find the Number of Values

question 56

Multiple Choice

Which aggregate function is used to find the number of values in a field?

• A) Values
• B) Num
• C) Number
• D) Count

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Definitions:

Herfindahl Index

A measure of the concentration and competitiveness of an industry; calculated as the sum of the squared percentage market shares of the individual firms in the industry.

Market Share

The proportion of total sales or business a company secures within a particular market, compared to its competitors.

Conglomerate Merger

A business combination of two or more unrelated companies, usually to diversify product lines or markets.

Vertical Merger

The merger of one or more firms engaged in different stages of the production of a particular final good.