These statistics could be applied to any religious group. The key to understanding this is in the question of how many “read the Bible” versus those who do not. IOW, how may actively practice their faith vs those who do not. This model is applicable across the board.
Yep to #2
He is the vine; we are the branches. If we remain in Him we will bear much fruit, but apart from Him we can do nothing.
Remaining in the Word is critical to everything good.
We have all failed, one way or the other, in living the idealized lifestyle that God wants us to live.
The key is that we can access the grace that has been promised to us all to make those requisite changes.
I'm glad to see it made clear that the party taking the survey defines their own terms and depending on what definitions they use can basically get any result they want.