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The Variance of Is

question 152

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The variance of The variance of   is   . is The variance of   is   . .


Definitions:

Tables

In the context of databases, tables are structures that organize data into rows and columns, allowing for efficient data management and retrieval.

Semi-Structured

Describes data that does not conform to a rigid structure but contains tags or markers to separate semantic elements and hierarchies of records and fields.

Unstructured

Data that does not have a pre-defined model or organization, making it difficult to process and analyze using traditional methods.

Structured

refers to a well-defined organization or arrangement, often used in the context of data and programming, where elements are organized in a predictable and efficient manner.

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