Which best describes the purpose of a control sample?
o to have more quantitative data to analyze at the end of the experiment
o to have more qualitative data to analyze at the end of the experiment
o to compare its results to those of a well-known scientist
o to compare its results to those with the experimental sample

To compare its results to those with the experimental sample best describes the purpose of a control sample.

O to compare its results to those with the experimental sample

Explanation:

Control samples are any sort of well-known forensic samples used to guarantee investigations are appropriately performed with the goal that outcomes are solid. Likewise called controls, known examples. The motivation behind control samples in a trial is to limit the impacts of factors other than the free factor.

This expands the dependability of the outcomes, frequently through an examination between control estimations and different estimations. The control must continue as before or equivalent consistently so as to get precise outcomes. You can have the same number of controls as important to accomplish results.

divide the right side by the left side

0.024÷1.2=0.02 for example