Scientists Currently Assessing the Environmental Impacts of the 2010 Deepwater

question 55

Multiple Choice

Scientists currently assessing the environmental impacts of the 2010 Deepwater Horizon oil spill in the Gulf of Mexico report that ________________.

• A) the entire Gulf food web will eventually collapse
• B) it may take years or decades before the full impacts are known
• C) the damage was limited to wildlife kills immediately after the spill
• D) Gulf productivity has already returned to normal and no further effects will be felt
• E) the coastal marshes of Louisiana suffered no measurable damage

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Definitions:

Chi-square Technique

A statistical method used to assess the differences between observed frequencies and expected frequencies in one or more categories.

Qualitative Variables

Variables that describe or categorize attributes or characteristics of a sample or population, without implying any order or numerical value for comparison.

Goodness-of-fit-test

A statistical test used to determine how well sample data fit a distribution from a population with a normal distribution.

Contingency Table

A table used in statistics to show the frequency distribution of variables, helping in analyzing the relationship between them.