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:

Technological Advance

The progress in scientific research and development leading to new inventions or improvements in technology that can increase productivity and economic growth.

Demand

The willingness and ability of consumers to purchase goods and services at various prices during a certain period.

Ice Cream Cones

A sweet, frozen dessert typically made with dairy products and served in a cone, popular in many cultures around the world.

Demand

The capacity of consumers to purchase goods or services at a range of prices within a given time interval, reflecting their willingness and financial ability.