Experts Are Particularly Concerned About Four Strategic Metal Resources That

question 20

Multiple Choice

Experts are particularly concerned about four strategic metal resources that are important for the U.S.economy and military strength, and that must be imported. Which of the following is not one of those metal resources?

• A)cobalt
• B)manganese
• C)iron
• D)chromium
• E)platinum

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Definitions:

Measurements

The process or the result of determining the size, length, or amount of something, typically by comparison with a standard unit.

Sample Mean

The average of a set of numerical values, taken from a sample of a larger population.

Construction Workers

Laborers who specialize in constructing, repairing, and maintaining buildings and other physical structures.

Variance

A statistical metric that quantifies the degree to which individual numbers in a dataset differ from the dataset's mean.