In statistics, Spearman's rank correlation coefficient or Spearman's rho, named after Charles Spearman and often denoted by the Greek letter Ï {\displaystyle \rho } (rho) or as r s {\displaystyle r_{s}} , is a nonparametric measure of rank correlation (statistical dependence between the ranking of two variables).
Freedom of Speech and Freedom to Criticize should have limit. Sometimes people and in particular, the big fishes, (politicians) go beyond the limit and make everyone complain for they even go to the extent of even abusing their seniors e.g.; presidents.
Almost since the adoption of the Bill of Rights, however, the judiciary has struggled to define speech and expression and the extent to which freedom of speech should be protected. Some, like Justice hugo l. black, have believed that freedom of speech is absolute. But most jurists, along with most U.S. citizens, agree with Justice oliver wendell holmes jr. , who felt that the Constitution allows some restrictions on speech under certain circumstances.