4
QuizMultiple Choice

Using Math to Analyze Data

Question 4 • *26-27 CFISD TX-Chemistry A CR

Precision can be defined as the

Answer
A
exact center of a data set.
B
reproducibility of a measured value.
C
correlation between two variables that are measured in a data set.
D
agreement between a measured value and an accepted value.

Explanation

Precision describes how reproducible a measurement is: repeated measurements under the same conditions give similar results. Choice B, “reproducibility of a measured value,” matches this definition; agreement with an accepted value describes accuracy instead.

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