All of the Following Are Tasks of Data Cleansing EXCEPT

question 26

Multiple Choice

All of the following are tasks of data cleansing EXCEPT:

• A) decoding data to make them understandable for data warehousing applications.
• B) adding time stamps to distinguish values for the same attribute over time.
• C) generating primary keys for each row of a table.
• D) creating foreign keys.

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Definitions:

Gini Coefficient

A measure of income inequality within a population, ranging from 0 (perfect equality) to 1 (perfect inequality).

Lorenz Curve

A graphical representation used to show the distribution of income or wealth within a society, depicting the proportion of total income earned by various segments of the population.

Income Inequality

The unequal distribution of household or individual income across the various participants in an economy.

Household Income

The combined gross income of all members of a household, typically measured over a set period of time, such as a month or a year.