The Process of Using Heat to Soften Metal So It

question 1

Multiple Choice

The process of using heat to soften metal so it can be bent or formed has been used ____.

• A) as long as mankind has worked with metals
• B) since the 13th century
• C) since the 16th century
• D) since the Industrial Revolution

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Definitions:

Indirect

Referring to a relationship or communication where the effect or message is not directly conveyed, but rather inferred through other means.

Statistical Significance

See Significance level.

Degrees of Freedom

The quantity of autonomous numbers or measures that can be allocated to a statistical distribution while still adhering to all restrictions.

Sample Size

The number of observations or elements drawn from a larger population for the purpose of statistical analysis.