Villa seem even worse at letting leads slip then we are. Dropped two points at Swansea in injury time, were 2-0 up and cruising v WBA and drew, were 3-1 up Everton with 2 minutes to go.
I don't think it will be as few as 29 points to stay up, but it's not likely to be as many as 38. Here's why:
Wigan - currently averaging 0.84 points per game - will end up on 32 points if this continues. Would need to average 1.31 points over their last 13 games to get to 38.
Villa - same as Wigan
QPR - currently averaging 0.68 per game - will end up on 26 points if this continues. Would need to average 1.61 points from hereon to get to 38.
Additionally, Reading are - over the season - on target for 35 points on their overall points per game performance.
An extra slight bonus is that we seem near certain to be ahead of Villa on goal difference (currently 15 ahead), and very probably also ahead of Wigan (currently 7 ahead), which is basically worth another half point to Saints.
My conclusion is that we'd be very unlucky to be relegated with 33 or 34 points. 35 or 36 will almost certainly do it. 40 points and we'll be clear by a tidy mile.
W 3 D 3 L 7 should be enough.
W 4 D 2 L 7 will surely be enough