Which of the following statements are true about studentized residuals?

false true They are the deviations of the observed values from the fitted line.
true They're closely related to the errors of prediction of the observation.
false Large studentized residuals will lead to large influence on the regression model in all circumstances.
The Studentized residual measures the distance which is based on the error of the prediction for the observation. It is the combination of an observation's leverage and distance that determines its influence.
Which of the following would have the largest influence? (h is the leverage, R is the studentized residual)

false
false X:1, Y:2, h:0.39, R:1.2
false X:2, Y:3, h:1.23, R:-0.13
true X:3, Y:5, h:1.21, R:-1.68
It is the combination of an observation's leverage and distance that determines its influence.