LOL---how would she know how many there were?
According to some threads I have read, she is either hiding in her tent, sleeping at the Crawford Peace House, getting her hair done, or her feet massaged.
She doesn't have TIME to know what is actually going on around her.
Besides, I think she is somewhat of a "ditz" (not that there is anything wrong with that), so even though she is putting out partisan propaganda about the number of counter-protestors...
I wouldn't doubt that she doesn't have a CLUE how many there are!
There has to be 7 people present before 250 people. Just a matter of timing, heh.