An Object Weighs 7

question 99

Multiple Choice

An object weighs 7.84 N when it is in air and 6.86 N when it is immersed in water of density 1000 kg/m³.What is the density of the object?

• A)6000 kg/m³
• B)7000 kg/m³
• C)8000 kg/m³
• D)9000 kg/m³

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Definitions:

False Negative

A false negative occurs when a test incorrectly indicates that a particular condition or attribute is absent.

False Positive

An error in data reporting in which a test result improperly indicates the presence of a condition (such as a disease) when it is not actually present.

Expected Value

The long-run average value of repetitions of the experiment it represents, often used in probability and statistics to predict outcomes of random events.

False Positive

An error in data testing in which a test result improperly indicates the presence of a condition (such as a disease when it is not present).