For Temperature Below -40°C Which One of the Following Substance

question 9

Multiple Choice

For temperature below -40°C which one of the following substance can be used as thermometric substance

• A)Alcohol
• B)Pentane
• C)Ether
• D)Any of the above
• E)None of the above

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Definitions:

Correlation

Correlation is a statistical measure that indicates the extent to which two or more variables fluctuate together.

Observational Studies

Research methods where the investigator observes subjects without manipulation, aiming to find correlations between variables.

Planetary Motion

The movement of planets around a star, such as the orbit of Earth and other planets around the Sun.

Proxy Variable

An auxiliary variable used in statistical analyses to represent an unobservable or difficult-to-measure variable.