When there is pass interference does that count as a completed pass?

Answer 1

yes as long as it gets caught. you can throw a pass that is a loss of 30, it's still a completed pass.

Answer 2

No the pass is still incomplete and no yards are added towards the qb nor receiver stats.

The yardage gained is added on to a team's penalty yardage.

Answer 3

If the penalty is accepted, it is no catch.

If the penalty is declined, yes, the pass attempt counts.