Residence Time Is the _______________

question 4

Multiple Choice

Residence time is the _______________

• A)chemical change that occurs with time, when substances are altered by the sun or metabolized by microorganisms
• B)length of time it takes to produce toxic chemicals in the environment
• C)average length of time a molecule of a substance spends in the environment
• D)chemical change that occurs with time, when substances alter the growth and development of humans
• E)length of time it takes for chemicals to be stored in the tissues of living organisms

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Definitions:

Variable

An element, feature, or factor that is liable to vary or change, used in experiments to determine its effects on the outcome.

Confidence Interval

A continuum of values, obtained through the study of sample statistics, poised to contain the value of an uncharted population parameter.

Confidence Level

The confidence level is a measure of the reliability of an estimate or interval, expressed as a percentage, indicating how often the true parameter falls within the estimated range in repeated samples.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the true value of an unknown population parameter.