A Laboratory Technician Analyzed a Sample Three Times for Percent

question 98

Multiple Choice

A laboratory technician analyzed a sample three times for percent iron and got the following results: 22.43% Fe, 24.98% Fe, and 21.02% Fe. The actual percent iron in the sample was 22.81%. The analyst's

• A) precision was poor but the average result was accurate.
• B) accuracy was poor but the precision was good.
• C) work was only qualitative.
• D) work was precise.

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Definitions:

Explanatory Inscription

Texts or engravings found on monuments, artworks, or artefacts that provide context, information, or explain the subject matter they accompany.

Scroll

A roll of paper, parchment, or other material, used in ancient and medieval times for writing documents.

East Asian Literati

A cultural and social movement involving scholars and officials in East Asia who engaged in the arts, poetry, and philosophy, often emphasizing personal expression and the importance of nature.

Watercolor Pigments

The coloring substances used in watercolor painting, known for their ability to dissolve in water and create translucent layers of color.