Question

Circle the letter of the best answer.
2. Which statement is true?
a. In scientific experiments, accuracy and precision mean the same thing.
b. Measured values that are precise are usually close to the accepted value.
c. Measured values that are accurate are close to the accepted value.
d. The term precision can be defined as "highly detailed accuracy."

Answer 1

The correct option is (c) Measured values that are accurate are close to the accepted value.

There are two ways to assess observational error: accuracy and precision. Precision is how closely spaced measurements are from one another, while accurate values measures how near or far apart a particular set of measurements (observations or readings) are from their true value.

Simply put, if a statistical sample or set of data points from repeated measurements of the same quantity has an average that is close to the true value of the quantity being measured, the sample or set is said to be accurate. Conversely, if the set's standard deviation is low, it is said to be precision.

Learn more about accurate values here;

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