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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Definitions:

Minimum Payments

The smallest amount of money that one is required to pay on a debt by a specified due date to avoid defaulting.

Interest Costs

The cost associated with borrowing funds, typically expressed as a percentage of the total amount borrowed.

Self-Interest

That which each firm, property owner, worker, and consumer believes is best for itself and seeks to obtain.

Behavioral Economists

Researchers who study the psychological, social, cognitive, and emotional factors on the economic decisions of individuals and institutions and how those decisions vary from those implied by classical theory.