Highway Patrol Officers Measure the Speed of Automobiles on a Highway

question 50

Multiple Choice

Highway patrol officers measure the speed of automobiles on a highway using radar equipment. The random variable in this experiment is speed, measured in miles per hour. This random variable is a _____.

• A) discrete random variable
• B) continuous random variable
• C) complex random variable
• D) None of the answers is correct.

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Definitions:

Quasi-Experimental Design

A research design that resembles an experimental design but lacks random assignment of subjects to treatment and control groups.

Error Variance

Pertains to the variation within experimental data that cannot be attributed to the variables being studied, essentially representing noise in the data.

Quasi-Experimental Designs

Research designs that seek to establish causal relationships between variables but lack the full control or random assignment typical of true experiments.

Selection Criteria

The specific guidelines or requirements used to determine which individuals or cases are included or excluded from a study or analysis.