In fact, with the data provided, the correct suggested figure would be '''2.25 times as liberal''', not 6 times. Let (AC,AL) be the percentage of conservatives and liberals respectively of all Americans and (WC,WL) the and = ratio for Wikipedia editors. Since these are probabilities, AC + AL = WC + WL = 1. Then the ratio of liberal Wikipedia editors to liberal Americans is WL/AL = ((WL/(WC + WL))/(AL/(AC + AL))) = (1/(WC/WL + 1))/(1/(AC/AL + 1)) = (AC/AL + 1)/(WC/WL + 1). Since the suggested ratios are AC/AL = 2 and WC/WL = 1/3, then WL/AL = (2 + 1)/(1/3 + 1) = 3/(4/3) = 9/4 = 2.25. [[User:Hdelbrook|Hdelbrook]] 21:46, 15 March 2007 (EDT) | In fact, with the data provided, the correct suggested figure would be '''2.25 times as liberal''', not 6 times. Let (AC,AL) be the percentage of conservatives and liberals respectively of all Americans and (WC,WL) the and = ratio for Wikipedia editors. Since these are probabilities, AC + AL = WC + WL = 1. Then the ratio of liberal Wikipedia editors to liberal Americans is WL/AL = ((WL/(WC + WL))/(AL/(AC + AL))) = (1/(WC/WL + 1))/(1/(AC/AL + 1)) = (AC/AL + 1)/(WC/WL + 1). Since the suggested ratios are AC/AL = 2 and WC/WL = 1/3, then WL/AL = (2 + 1)/(1/3 + 1) = 3/(4/3) = 9/4 = 2.25. [[User:Hdelbrook|Hdelbrook]] 21:46, 15 March 2007 (EDT) |