When a large black cable is laid across a street to count the number of cars that travel along that street in an attempt to use the information to decide whether or not to install a traffic light at the next intersection,this is an example of:
A)human observation.
B)a contrived situation.
C)a closed observation.
D)machine observation.
E)a GSR observation.

Question

Quizplus · Accepted Answer

The use of a cable to count the number of cars is an example of machine observation, as it involves a device (the cable) collecting data on its own without human intervention.

When a Large Black Cable Is Laid Across a Street