When Testing the Safety of Cars Using Crash Tests,a Sample

question 20

Multiple Choice

When testing the safety of cars using crash tests,a sample of one or two cars is used because ________.

• A)sampling is more accurate
• B)cars are destroyed
• C)it is quicker
• D)the population is very large

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Definitions:

The Experiment

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

Experimental Research

A method of research that tests a hypothesis through the manipulation of variables and controlled conditions to determine cause and effect.

Correlated

A term indicating a statistical relationship between two or more variables, where changes in one variable are associated with changes in another.

Risky Sexual Behaviors

Actions that increase the likelihood of contracting sexually transmitted infections (STIs) or unwanted pregnancy.