What is a scientific experiment? a statement that tries to answer a scientific question a rigorous procedure that produces scientific data a final decision that describes a scientific model a collection of data that generates a scientific observation

D.) A collection of data that generates a scientific observation

A rigorous procedure that produces scientific data.

Explanation:

A scientific experiment can be define as the a detail procedure which involves a step by step scientific methodology so as to find answers related to the scientific questions.

The data produced after the implementation of the scientific methodology can be useful for answering the questions related to the cause of the natural phenomena or event.  

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.