Refer to the Following Choices to Answer the Questions Below

question 118

Multiple Choice

Refer to the following choices to answer the questions below. Chose the answer that best describes the chemical composition of the object.
-the atmosphere of Mars

• A)nickel and iron
• B)80 percent nitrogen, 20 percent oxygen
• C)95 percent carbon dioxide
• D)mostly hydrogen and helium
• E)frozen methane, ammonia, water, and other gases and dust

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Definitions:

Household Income

The total income earned by all members of a household, including wages, investments, and any other sources of income.

Proportion

A part, share, or number considered in comparative relation to a whole; often expressed as a fraction or percentage.

Sample

A subset of a larger population, selected for the purpose of conducting statistical analysis or experimentation.

Parameter

A quantity that characterizes a statistical population and can be estimated by a function of the sample data.