Answer
Every value of the variable y will always fall exactly on the line of means.
Work Step by Step
For y to fall exactly on line of means, it must satisfy fol condition:
$y = β_{o} + β{1}x$
However in probabilistic model:
$y = line of means + Ɛ where Ɛ is an extra factor whose value can be positive or negative, which will deviate the value of y from line of means.
