A City Wants to Monitor Its Air Quality to Address

question 12

Multiple Choice

A city wants to monitor its air quality to address the consequences of air pollution. A Machine Learning Specialist needs to forecast the air quality in parts per million of contaminates for the next 2 days in the city. As this is a prototype, only daily data from the last year is available. Which model is MOST likely to provide the best results in Amazon SageMaker?

• A) Use the Amazon SageMaker k-Nearest-Neighbors (kNN) algorithm on the single time series consisting of the full year of data with a predictor_type of regressor . Use the Amazon SageMaker k-Nearest-Neighbors (kNN) algorithm on the single time series consisting of the full year of data with a predictor_type of regressor .
• B) Use Amazon SageMaker Random Cut Forest (RCF) on the single time series consisting of the full year of data.
• C) Use the Amazon SageMaker Linear Learner algorithm on the single time series consisting of the full year of data with a predictor_type of regressor . Use the Amazon SageMaker Linear Learner algorithm on the single time series consisting of the full year of data with a
• D) Use the Amazon SageMaker Linear Learner algorithm on the single time series consisting of the full year of data with a predictor_type of classifier . classifier

---

Definitions:

Initial Investments

Initial investments are the upfront sums spent to start a project, purchase assets, or establish a business.

Income Tax Expense

The cost incurred by a company due to the taxes on its taxable income.

After-Tax Discount Rate

The discount rate used in analyzing cash flows that accounts for taxes, representing the net cost or benefit of an investment after taxes.

Income Tax Rate

How much of a person's or company's income is taken as tax.