An experiment consists of measuring the speed of automobiles on a highway by the use of radar equipment.The random variable in this experiment is speed, measured in miles per hour.This random variable is a
A) nominal random variable.
B) ordinal random variable.
C) discrete random variable.
D) continuous random variable.

Question

An experiment consists of measuring the speed of automobiles on a highway by the use of radar equipment.The random variable in this experiment is speed, measured in miles per hour.This random variable is a
A) ​nominal random variable.
B) ​ordinal random variable.
C) ​discrete random variable.
D) ​continuous random variable.

Quizplus · Accepted Answer

Speed is a continuously varying quantity and can take on any value within a certain range. Therefore, it is a continuous random variable. Options A and B are not relevant in this case because they refer to qualitative variables, and option C is not applicable because speed can take on any value within a certain range.

An Experiment Consists of Measuring the Speed of Automobiles on a Highway