A Section of an Exam Contains Two Multiple-Choice Questions, Each

question 106

Multiple Choice

A section of an exam contains two multiple-choice questions, each with three answer choices (listed "A", "B", and "C") . Assuming the outcomes to be equally likely, find the
Probability (as a reduced fraction) that both answers are "C". [Hint: List all the outcomes
Of the sample space first.]

• A) 1/9
• B) 1/27
• C) 1/3
• D) 1/6

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Definitions:

Groundwater Contamination

Groundwater contamination occurs when pollutants, from sources like industrial waste, agricultural chemicals, or improper waste disposal, percolate into natural groundwater sources, making it unsafe for consumption and the environment.

Hazardous Waste

Waste that poses substantial or potential threats to public health or the environment due to its toxicity, chemical reactivity, flammability, or other characteristics.

Residential Wells

Small-scale water extraction facilities located on private property used primarily to supply water to individual homes or small communities.

Aquatic Ecosystem

A water-based environment, including oceans, rivers, lakes, and wetlands, where plants and animals interact with the physical and chemical features.