Rank These Fossil Fuels on Their Cleanliness (Cleanest to Dirtiest)

question 9

Multiple Choice

Rank these fossil fuels on their cleanliness (cleanest to dirtiest) . 1. coal 2. petroleum 3. natural gas

• A)3, 2, 1
• B)2, 3, 1
• C)1, 3, 2
• D)1, 2, 3
• E)3, 1, 2

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Definitions:

Adjusted Value

A modification of financial or numerical data to account for changes or for better comparison, often used in accounting and finance.

Explained Variation

The portion of the total variation in a dataset that is accounted for by the model's predictor variables.

Independent Variables

Variables in a statistical or mathematical model that are manipulated or have their values set externally to observe or measure their effect on dependent variables.

Degrees of Freedom

The number of independent values or quantities which can vary in the calculation of a statistic.