Which equation represents a circle? a. `(x – 2)^2/(2^2) + (y – 3)^2/(3^2) = 1` b. `(x – 4)^2/(3^2) + (y + k)^2/(1^2) = 1` c. `(x^2)/(2^2) + (y^2)/(2^2) = 1` d. `(x^2)/(1^2) + (y^2)/(3^2) = 1`?

Amayoral candidate would like to know her residents’ views on a tax on sugar drinks before the mayoral debates. she asks one thousand registered voters from both parties. these voters are an example of a census population convenience sample simple random sample