3B1 expresses doubt above the celebration, in truth expects it not to occur. 3B2 expresses uncertainty, it would or won't take place. 3B3 expects that it will materialize. If a coefficient is really a variety multiplied by a variable, why would be the "correlation coefficient" referred to as therefore? In https://share.evernote.com/note/322c01fe-9008-3c72-bd31-8f22a20441b7