Lots of good news in new NBC poll

[ProfessorGAC]

38. Same Thing I Thought

55% of 51% (women) is 28.05%. For the 18-34 group, 65% of roughly 20% of the population is 13%. Since those are half women, 6.5%
We're already at 34.5%. Biden only gets 14.5% of the other 65?
And, as we see in that one example, it's easy to double count. Black & Latino voters are both men & women.
A lot of extra angles need to be viewed for these numbers to make sense.
How all those slices add up to 49-45 is confounding. (Statistics pun intended.)