A Random Variable

question 121

Multiple Choice

A random variable

• A) is the result of a measurement.
• B) can only be discrete.
• C) assigns one and only one numeric value to each experimental outcome.
• D) is a binomial, Poisson, or hypergeometric variable.

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Definitions:

Null Hypothesis

A default hypothesis that there is no significant difference or effect, typically tested against an alternative hypothesis in statistical analysis.

Equality

The state or quality of being equal, especially in status, rights, and opportunities.

Population Variances

A measure of the dispersion of a set of data points in a population data set.

Normally Distributed

Describes a statistical distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.