If a Random Variable Follows a Normal Distribution, What Is

question 19

Multiple Choice

If a random variable follows a normal distribution, what is the probability that the random variable is larger than 1.96 standard deviations below the mean?

• A) 95.00%
• B) 96.25%
• C) 97.50%
• D) 98.75%

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Definitions:

Independent Variable

In an experimental setting, this is the variable that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Sample

Group of subjects selected from a larger population of subjects, usually selected randomly.

Population

In statistics and research, the entire group of individuals or instances about whom the information is desired; in biology, all the organisms of the same group or species living in a particular geographic area.

Correlational Method

A research strategy that involves measuring two or more variables to determine the degree of relationship between them.