Answer:
correlation
Explanation:
By examining correlation, scientists can test predictions for situations in which it is impossible or unethical to use experiments.
Correlation determines if there is, and measures the strength of the relationship between two variables. Hypotheses are usually tested by experiments in science, but some situations make experiments impossible or unethical to be performed directly. In such cases, simulational experiments are performed and correlation is used to theoretically determine or predict the outcome of situations.
