The close together means high precision.
BUT
The wrong answer means poor accuracy.
Precision, Accuracy, and Percent Error:
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Suppose a student measures the volume of an aluminum block three times and records the following data: 8.42 cm^3, 8.41 cm^3, and 8.40 cm^3. The accepted volume of the aluminum block is 11.5 cm^3. Comment on the accuracy and precision of the data. Provide an explanation for your answer.
Answer: This data is not accurate because the 3 measurements are close together but less than the accepted volume of the aluminum block of 11.5 cm^3 but at least 3 centimeters.
Am I right? I tend to confuse accuracy and precision. They are almost the same but at the same its confusing to deciper each.
1 answer