An Increase in Air Pressure Will Cause the Mercury in a Barometer

question 48

Multiple Choice

An increase in air pressure will cause the mercury in a barometer to ________.

• A) rise
• B) fall
• C) freeze
• D) None of the above-barometers do not measure air pressure.

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Definitions:

Volunteer Sampling

Obtaining a sample by asking for volunteers.

Sampling Interval

The interval selected in systematic sampling (e.g., every 10th or 100th unit).

Systematic Sampling

Sampling by selecting every nth unit from a population.

Snowball Sampling

A non-probability sampling technique where existing study subjects recruit future subjects from among their acquaintances.