[Perdogg]

I think they gather the samples and then they get demographics and apply a statistic test which include error

error = sqrt ((p X (1-p))/(n-1))

p (candidate A) = 0.48
q (candidate B) = 0.52
n = 502

error = (sqrt(0.52 X 0.48)/(501)) =0.02

Candidate A = 48%
Candidate B = 52%
Margin of error = +/- 2%

If n > 33, then n-1 is not considered statistically significant.

[Yaelle]

I love your math but I am just not completely understanding it. What is the variable for the “demographics” and how does that work in? How is significance determined?

Please pretend you are speaking to an absolute idiot (me) with blonde hair.