Just to remind you - The polls said killary would win 90%+ Wrong
True
The national polls showed Hillary had a slight lead that was within the margin of error ( +/- 2-3 %).
She did win the popular vote by over 3 million votes, so the polls actually got that right.
They were a bit off when it came the key "rust belt" states that Trump won by small margins.
In all modesty I may have bit more understanding into the statistical analysis and models used in polling.
Rarely does much attention go into why /how the margin of error is there.
Plus, the polls are based on random samples of various demographics.
It's kinda like stats used to describe the avg family.
Let's say it's reported the avg family has 3.2 children.
Nobody has 0.2 kids, and that's not what it means.
In simple terms the 0.2 = 20% of the time they will have 1 more child or 4 total.
But 0.80 or 80 % of the time they will have 3 kids.
The other numbers [ 0, 1 .... 5, 6 , etc] are placed in groups based
on standard deviations from the norm.