The image shows four classification trees $($T$1,$T$2,$T$3,$T$4),$ together with four regions $($R$1,$R$2,$R$3,$R$4).$ Each region is $[0,1]2$

in variables x$1,$x$2$

$,$ which has been partitioned and colored according to the color scheme "red" $(1/$positive$/"$Yes$")$ and "black" $(0/$negative$/"$No$").$

Examine carefully the information given before quantifying the truthfulness of the following statements that relate trees and regions.