hello , I have been reading a maths book about probability and there is a section about polls and surveys and finding the margin of error ,there is a quick formula in the book to find the margin of error , my question is does it work forany number of candidateshere is my question.question .you survey a1000people , and you find that support for the3candidates are60% 30% 10%, the margin of error will be , find the square root of the number of people surveyed1000 peopledoes this formula work for 3 , 4 , 5 ........... candidates?so the square rootis 31.6 , divide by 98 ,so98 / 31.6 = 3 .1 %