Question

4. In regression, the residuals are which of the following?
(a) Those factors unexplained by the data
(b) The difference between the observed responses ( y) and the values predicted
by the regression line ( 𝑦̂ ).
(c) Those data points which were recorded after the formal investigation was
completed
(d) Possible models unexplored by the investigator
(e) None of the above

Answer 1

@Michele_Laino

Answer 2

In statistics, a residual refers to the amount of variability in a dependent variable (DV) that is "left over" after accounting for the variability explained by the predictors in your analysis (often a regression).

Answer 3

so C

Answer 4

Should be, yes.