File talk:George W Bush approval ratings.svg

Question
Why are the approval (blue) and disapproval (red) data lines mirror images of each other? Sstteevvee (talk) 04:11, 14 November 2008 (UTC)
 * The "unsure" line stays pretty much flat. So those who disapprove and those who approve are precentages taken out of the 94% or so that has a definite opinion. That's my figuring, anyway. -155.42.196.23 (talk) 04:26, 28 November 2008 (UTC)


 * The two lines are mirror images because neither can have significant gains over the other; you can't have 125% of people reporting, with 55% approving and 60% disapproving (with the remaining 5% being "unsure"). If approval drops 5%, it's because disapproval has risen 5%. EVula // talk // &#9775;  // 16:48, 3 December 2008 (UTC)

Time for an update?
It's been a month and a half. -155.42.196.23 (talk) 04:26, 28 November 2008 (UTC)
 * Yeah. -155.42.196.63 (talk) 04:48, 7 January 2009 (UTC)

Spikes?
Can you explain the sharp increases and decreases? October 2001 it shot straight up! —Preceding unsigned comment added by 76.6.22.162 (talk) 04:46, 4 March 2010 (UTC)
 * I don't think the Oct '01 increase/decrease needs any explanation... JayFS89 (talk) 10:17, 11 March 2010 (UTC)

Unnecessary red line
As a renowned statistician and editor, I hereby contend the existence of the red line. You get the red line when the blue line is subtracted from 100. The red line is completely peripheral. TYelliot &#124;  Talk  &#124;  Contribs  18:59, 4 November 2010 (UTC)
 * You forget the existence of the green third line, which represents people rating "unsure". --129.11.13.73 (talk) 19:03, 20 November 2010 (UTC)