Which of These Is Not a Unit for Measuring the Concentration

question 38

Multiple Choice

Which of these is not a unit for measuring the concentration of solutions?

• A) M
• B) m
• C) ppm
• D) atm
• E) mg/L

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Definitions:

Life Expectancy

A statistical measure indicating the average number of years a person is expected to live, based on the year of their birth, current age, and other demographic factors.

Correlation Coefficient

A numerical value that indicates the strength and direction of the relationship between two variables; ranges from +1.00 (a perfect positive correlation) to −1.00 (a perfect negative correlation).

Smoking

The process of breathing in and out smoke from tobacco or a substance.

Correlation

A statistical measurement that indicates the extent to which two or more variables fluctuate together.