A Data Scientist Needs to Analyze Employment Data

question 35

Multiple Choice

A Data Scientist needs to analyze employment data. The dataset contains approximately 10 million observations on people across 10 different features. During the preliminary analysis, the Data Scientist notices that income and age distributions are not normal. While income levels shows a right skew as expected, with fewer individuals having a higher income, the age distribution also show a right skew, with fewer older individuals participating in the workforce. Which feature transformations can the Data Scientist apply to fix the incorrectly skewed data? (Choose two.)

• A) Cross-validation
• B) Numerical value binning
• C) High-degree polynomial transformation
• D) Logarithmic transformation
• E) One hot encoding

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Definitions:

Economic Development

The process through which a region improves the economic, political, and social well-being of its people.

Democratic Government

A form of government in which power is vested in the people and exercised by them directly or through freely elected representatives.

Collectivization

The process of transforming private assets, properties, or industries into collectively owned entities, often associated with communist or socialist policies.

Relative Deprivation Theory

A theory suggesting that individuals who perceive themselves as having less resources or social advantages than others in their group or society are more likely to engage in social movements or deviant behaviors.