3B1 expresses doubt above the function, without a doubt expects it not to happen. 3B2 expresses uncertainty, it would or won't occur. 3B3 expects that it will occur. If a coefficient can be a range multiplied by a variable, why could be the "correlation coefficient" referred to as as a https://share.evernote.com/note/d52ee663-263e-7b7b-4337-d56a5ded479b