Answer:
The correct option is A.
Step-by-step explanation:
The difference between actual value and predicted value is called residual.
Formula of residual is
[tex]e=y-\hat{y}[/tex]
Where, y is observed value or actual value and [tex]\hat{y}[/tex] is predicted value.
[tex]e=3-1.6[/tex]
[tex]e=1.4[/tex]
The value of residual is 1.4 and option A is correct.