Following a Precision Study in Which Repeatability and Reproducibility of 20

question 5

Multiple Choice

Following a precision study in which repeatability and reproducibility of 20 samples are assessed,which one of the following formulae would be used to determine the total standard deviation ( $\sigma$ ²_T) ?

• A) .\(\sigma\)²_within-run/2 + \(\sigma\)²_between-run
• B) (x2_i - x1_i)
• C) .\(\Sigma\)(x₁ -\(\mu\))²/N
• D) .\(\Sigma\)²_within-run + \(\Sigma\)²_between-run

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Definitions:

Robert Park

An influential American sociologist known for his work on urban sociology, collective behavior, and human ecology.

Ethnic Groups

Communities or populations that share a common cultural heritage, ancestry, language, history, and sometimes physical characteristics.

Racism

A mindset of bias, differential treatment, or enmity against persons of another race, rooted in the assumption that one's race is superior.

Skin Color

The pigmentation of an individual's skin, which can vary widely among humans and is often used as a basis for social or racial classification.