Answer:
A correlation is simply defined as a relationship between two variables. The whole purpose of using correlations in research is to figure out which variables are connected. I'm also going to start referring to the things as variables; it's a more scientific name. This simple definition is the basis of several statistical tests that result in a correlation coefficient, defined as a numerical representation of the strength and direction of a relationship.Correlation is a statistic that measures the degree to which two variables move in relation to each other. In finance, the correlation can measure the movement of a stock with that of a benchmark index, such as the S&P 500.
Explanation:
correct me if im wrong but hope it helps ฅ^•ﻌ•^ฅ
