\(\rho =1-\frac{6\sum d_{i}^{2}}{n\left ( n^{2}-1 \right )} \) formula is called the ________

\(\rho =1-\frac{6\sum d_{i}^{2}}{n\left ( n^{2}-1 \right )} \) formula is called the ________

—>> Spearman’s rank correlation

Pearson’s correlation coefficient

Student T- test statistic

Mann-whitney rank