Answer :
A very large percent of error from the theroetical yeild. and the experiment will then be practically useless and no answer will be obtained from it.
If a researcher fails to control the relevant variables in an experiment, it will affect the whole observation and conclusion of the experiment.
What is Experimental control?
Experimental control may be defined as the designation of keeping some sorts of variables under constant conditions and utilizing this as a standard form of comparison to the experimental component.
If a researcher fails to regulate the controlled or independent variables in an experiment, the problem arises that he/she does not reveal the value of a dependent variable or standard outcome.
A huge amount of error will be detected on the basis of the theoretical yield. As a result of this, the performed experiment is completely wasted and useless in terms of experimental or scientific evidence.
Therefore, if a researcher fails to control the relevant variables in an experiment, it will affect the whole observation and conclusion of the experiment.
To learn more about Experimental variables, refer to the link:
https://brainly.com/question/24708013
#SPJ2
