And one team may have 9 wins and one team 8 wins which throws your theory out the window lol
I reckon 8 points
might be enough, 10 probably ought to be. problem is you can't forecast some of the results and is still an upset or two possible, I don't expect Bangladesh, Holland, Sri Lanka or Afghanistan to progress but with England hardest task to make it I think any three from six after India, New Zealand and South Africa 'shoe ins' for the top 3, top 4 worst.
Interesting stat, regardless of inserting or chosing to bat, the side winning the toss has
LOST SIXTEEN of the 20 games so far.
No side has elected to bat and won so far, maybe why England decided against but then might not be batting first = loss, just those chose to bat first chose wrong!
Batted first
Won toss : P5 W0 L5
Lost toss : P15 W11 L4
Bowled first
Won toss : P15 W4 L11
Lost toss : P5 W5 L0
Sri Lanka, Bangladesh and Holland have won most tosses (3), India and Pakistan the least (1) As you can see from the above, or work out easily anyway, batting first has won 11 games to batting seconds' 9. Chasing however is easier if playing a weaker opponent, as is defending a total naturally
Won batting first vs AFG/BAN/HOL/SRL (5/11) : PAK, SAF, NZL (x2), ENG
Won batting second vs AFG/BAN/HOL/SRL (4/9) : PAK, IND, NZL, IND
About evens/just under half so the significance of batting first or second is going to be down to a number of factors, not least conditions.