As Part of an Experiment to Determine the Density of a New

question 10

Multiple Choice

As part of an experiment to determine the density of a new plastic developed in her laboratory, Sara Ann Dippity measures the volume of a solid sample. Her four trials yield volumes of 12.37 cm³, 12.41 cm³, 12.39 cm³, and 12.38 cm³. Measurements of other scientists in the lab give an average volume of 12.49 cm³. Which of the following statements represents the best analysis of the data?

• A)Sara's results have low precision and high accuracy.
• B)Sara's results have high precision and high accuracy.
• C)Sara's results have greater precision than accuracy.
• D)Sara's results have greater accuracy than precision.
• E)Sara has been using a faulty instrument to measure the volume.

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